Finding the Fourth Proportional to 913,704.18, 1,370,836.80 and 408,689.97
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Solution
The fourth proportional to 913,704.18, 1,370,836.80 and 408,689.97 is: 613,160.43
Step by Step Solution
- Step 1: Write the proportion equation
913,704.18 : 1,370,836.80 = 408,689.97 : x - Step 2: Convert to fraction form
913,704.18/1,370,836.80 = 408,689.97/x - Step 3: Cross multiply
913,704.18x = 1,370,836.80 × 408,689.97 - Step 4: Simplify right side
913,704.18x = 560,247,250,666.90 - Step 5: Solve for x
x = 560,247,250,666.90/913,704.18 - Step 6: Final answer
x = 613,160.43
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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.