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Finding the Fourth Proportional to 762,843.92, 1,052,737.97 and 418,712.04

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Solution

The fourth proportional to 762,843.92, 1,052,737.97 and 418,712.04 is: 577,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,843.92 : 1,052,737.97 = 418,712.04 : x
  2. Step 2: Convert to fraction form
    762,843.92/1,052,737.97 = 418,712.04/x
  3. Step 3: Cross multiply
    762,843.92x = 1,052,737.97 × 418,712.04
  4. Step 4: Simplify right side
    762,843.92x = 440,794,060,910.60
  5. Step 5: Solve for x
    x = 440,794,060,910.60/762,843.92
  6. Step 6: Final answer
    x = 577,829.95

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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.