Finding the Fourth Proportional to 989,739.68, 1,485,355.88 and 724,185.32
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Solution
The fourth proportional to 989,739.68, 1,485,355.88 and 724,185.32 is: 1,086,824.09
Step by Step Solution
- Step 1: Write the proportion equation
989,739.68 : 1,485,355.88 = 724,185.32 : x - Step 2: Convert to fraction form
989,739.68/1,485,355.88 = 724,185.32/x - Step 3: Cross multiply
989,739.68x = 1,485,355.88 × 724,185.32 - Step 4: Simplify right side
989,739.68x = 1,075,672,917,655.37 - Step 5: Solve for x
x = 1,075,672,917,655.37/989,739.68 - Step 6: Final answer
x = 1,086,824.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.