Finding the Fourth Proportional to 677,915.76, 935,553.12 and 406,027.92
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Solution
The fourth proportional to 677,915.76, 935,553.12 and 406,027.92 is: 560,336.12
Step by Step Solution
- Step 1: Write the proportion equation
677,915.76 : 935,553.12 = 406,027.92 : x - Step 2: Convert to fraction form
677,915.76/935,553.12 = 406,027.92/x - Step 3: Cross multiply
677,915.76x = 935,553.12 × 406,027.92 - Step 4: Simplify right side
677,915.76x = 379,860,687,363.11 - Step 5: Solve for x
x = 379,860,687,363.11/677,915.76 - Step 6: Final answer
x = 560,336.12
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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.