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Finding the Fourth Proportional to 524,859.72, 724,655.10 and 403,787.40

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Solution

The fourth proportional to 524,859.72, 724,655.10 and 403,787.40 is: 557,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,859.72 : 724,655.10 = 403,787.40 : x
  2. Step 2: Convert to fraction form
    524,859.72/724,655.10 = 403,787.40/x
  3. Step 3: Cross multiply
    524,859.72x = 724,655.10 × 403,787.40
  4. Step 4: Simplify right side
    524,859.72x = 292,606,598,725.74
  5. Step 5: Solve for x
    x = 292,606,598,725.74/524,859.72
  6. Step 6: Final answer
    x = 557,494.86

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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.