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Finding the Fourth Proportional to 539.30, 739.67 and 532.91

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Solution

The fourth proportional to 539.30, 739.67 and 532.91 is: 730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.30 : 739.67 = 532.91 : x
  2. Step 2: Convert to fraction form
    539.30/739.67 = 532.91/x
  3. Step 3: Cross multiply
    539.30x = 739.67 × 532.91
  4. Step 4: Simplify right side
    539.30x = 394,179.72
  5. Step 5: Solve for x
    x = 394,179.72/539.30
  6. Step 6: Final answer
    x = 730.91

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.