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Finding the Fourth Proportional to 539.16, 739.19 and 529.44

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Solution

The fourth proportional to 539.16, 739.19 and 529.44 is: 725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.16 : 739.19 = 529.44 : x
  2. Step 2: Convert to fraction form
    539.16/739.19 = 529.44/x
  3. Step 3: Cross multiply
    539.16x = 739.19 × 529.44
  4. Step 4: Simplify right side
    539.16x = 391,356.75
  5. Step 5: Solve for x
    x = 391,356.75/539.16
  6. Step 6: Final answer
    x = 725.86

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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.