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Finding the Fourth Proportional to 713, 1,067.42 and 506.92

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Solution

The fourth proportional to 713, 1,067.42 and 506.92 is: 758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713 : 1,067.42 = 506.92 : x
  2. Step 2: Convert to fraction form
    713/1,067.42 = 506.92/x
  3. Step 3: Cross multiply
    713x = 1,067.42 × 506.92
  4. Step 4: Simplify right side
    713x = 541,096.55
  5. Step 5: Solve for x
    x = 541,096.55/713
  6. Step 6: Final answer
    x = 758.90

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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.