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Finding the Fourth Proportional to 506,003.57, 759,129.92 and 356,535.78

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Solution

The fourth proportional to 506,003.57, 759,129.92 and 356,535.78 is: 534,891.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,003.57 : 759,129.92 = 356,535.78 : x
  2. Step 2: Convert to fraction form
    506,003.57/759,129.92 = 356,535.78/x
  3. Step 3: Cross multiply
    506,003.57x = 759,129.92 × 356,535.78
  4. Step 4: Simplify right side
    506,003.57x = 270,656,976,365.86
  5. Step 5: Solve for x
    x = 270,656,976,365.86/506,003.57
  6. Step 6: Final answer
    x = 534,891.44

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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.