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Finding the Fourth Proportional to 530,169.92, 731,654.72 and 303,859.20

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Solution

The fourth proportional to 530,169.92, 731,654.72 and 303,859.20 is: 419,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,169.92 : 731,654.72 = 303,859.20 : x
  2. Step 2: Convert to fraction form
    530,169.92/731,654.72 = 303,859.20/x
  3. Step 3: Cross multiply
    530,169.92x = 731,654.72 × 303,859.20
  4. Step 4: Simplify right side
    530,169.92x = 222,320,017,895.42
  5. Step 5: Solve for x
    x = 222,320,017,895.42/530,169.92
  6. Step 6: Final answer
    x = 419,337.29

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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.