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Finding the Fourth Proportional to 732.20, 1,010.58 and 522.32

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Solution

The fourth proportional to 732.20, 1,010.58 and 522.32 is: 720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.20 : 1,010.58 = 522.32 : x
  2. Step 2: Convert to fraction form
    732.20/1,010.58 = 522.32/x
  3. Step 3: Cross multiply
    732.20x = 1,010.58 × 522.32
  4. Step 4: Simplify right side
    732.20x = 527,846.15
  5. Step 5: Solve for x
    x = 527,846.15/732.20
  6. Step 6: Final answer
    x = 720.90

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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.