
Serge M. answered 12/17/16
Tutor
5
(11)
Professor of Accounting, retired. Ph.D., CPA
This problem implies that 8% interest is compounded semi-annually. A diagram helps you to see that is taking place, what you have, and what you need to solve. So we'll se 2 periods before your father gives you money, and 8 periods total
----P----P+$400----P-- ---P----P---P PV=$1,000
What you have to find is the size of the semi-annual payment you will make so that the total ends up at $1,000
First we can find to what amount will your father's payment grow. It will grow for 6 periods
FV = $400 * (1 + .04)^6 = 506.13
So the future value of what you have to invest is $1,000 - 506.13 = $493.87
Solve for the rent (PMT) of an ordinary annuity whose future value = $493.87. Solving the formula can be tedious but a financial calculator or a spreadsheet function makes this simple.
FV = 493.87
N = 8
i% = 4%
PV = 0
PMT = ?
Your monthly payment should be $51.54, including the period when your father gives you $400.