Finding the Fourth Proportional to 494,353.13, 681,547.57 and 392,715.95
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Solution
The fourth proportional to 494,353.13, 681,547.57 and 392,715.95 is: 541,423.90
Step by Step Solution
- Step 1: Write the proportion equation
494,353.13 : 681,547.57 = 392,715.95 : x - Step 2: Convert to fraction form
494,353.13/681,547.57 = 392,715.95/x - Step 3: Cross multiply
494,353.13x = 681,547.57 × 392,715.95 - Step 4: Simplify right side
494,353.13x = 267,654,597,033.21 - Step 5: Solve for x
x = 267,654,597,033.21/494,353.13 - Step 6: Final answer
x = 541,423.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.