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Finding the Fourth Proportional to 534,475.80, 800,792.10 and 253,387.80

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Solution

The fourth proportional to 534,475.80, 800,792.10 and 253,387.80 is: 379,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,475.80 : 800,792.10 = 253,387.80 : x
  2. Step 2: Convert to fraction form
    534,475.80/800,792.10 = 253,387.80/x
  3. Step 3: Cross multiply
    534,475.80x = 800,792.10 × 253,387.80
  4. Step 4: Simplify right side
    534,475.80x = 202,910,948,476.38
  5. Step 5: Solve for x
    x = 202,910,948,476.38/534,475.80
  6. Step 6: Final answer
    x = 379,644.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.