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Finding the Fourth Proportional to 524,780.19, 724,545.27 and 403,707.87

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Solution

The fourth proportional to 524,780.19, 724,545.27 and 403,707.87 is: 557,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,780.19 : 724,545.27 = 403,707.87 : x
  2. Step 2: Convert to fraction form
    524,780.19/724,545.27 = 403,707.87/x
  3. Step 3: Cross multiply
    524,780.19x = 724,545.27 × 403,707.87
  4. Step 4: Simplify right side
    524,780.19x = 292,504,627,670.28
  5. Step 5: Solve for x
    x = 292,504,627,670.28/524,780.19
  6. Step 6: Final answer
    x = 557,385.04

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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.