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Finding the Fourth Proportional to 732.62, 1,011.12 and 471.40

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Solution

The fourth proportional to 732.62, 1,011.12 and 471.40 is: 650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.62 : 1,011.12 = 471.40 : x
  2. Step 2: Convert to fraction form
    732.62/1,011.12 = 471.40/x
  3. Step 3: Cross multiply
    732.62x = 1,011.12 × 471.40
  4. Step 4: Simplify right side
    732.62x = 476,637.67
  5. Step 5: Solve for x
    x = 476,637.67/732.62
  6. Step 6: Final answer
    x = 650.59

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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.