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Finding the Fourth Proportional to 550.71, 754.46 and 529.91

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Solution

The fourth proportional to 550.71, 754.46 and 529.91 is: 725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.71 : 754.46 = 529.91 : x
  2. Step 2: Convert to fraction form
    550.71/754.46 = 529.91/x
  3. Step 3: Cross multiply
    550.71x = 754.46 × 529.91
  4. Step 4: Simplify right side
    550.71x = 399,795.90
  5. Step 5: Solve for x
    x = 399,795.90/550.71
  6. Step 6: Final answer
    x = 725.96

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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.