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Finding the Fourth Proportional to 539.92, 746.04 and 424.36

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Solution

The fourth proportional to 539.92, 746.04 and 424.36 is: 586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.92 : 746.04 = 424.36 : x
  2. Step 2: Convert to fraction form
    539.92/746.04 = 424.36/x
  3. Step 3: Cross multiply
    539.92x = 746.04 × 424.36
  4. Step 4: Simplify right side
    539.92x = 316,589.53
  5. Step 5: Solve for x
    x = 316,589.53/539.92
  6. Step 6: Final answer
    x = 586.36

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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.