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Finding the Fourth Proportional to 732.27, 1,011.21 and 470.74

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Solution

The fourth proportional to 732.27, 1,011.21 and 470.74 is: 650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.27 : 1,011.21 = 470.74 : x
  2. Step 2: Convert to fraction form
    732.27/1,011.21 = 470.74/x
  3. Step 3: Cross multiply
    732.27x = 1,011.21 × 470.74
  4. Step 4: Simplify right side
    732.27x = 476,016.49
  5. Step 5: Solve for x
    x = 476,016.49/732.27
  6. Step 6: Final answer
    x = 650.06

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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.