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Finding the Fourth Proportional to 732.38, 1,010.76 and 470.48

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Solution

The fourth proportional to 732.38, 1,010.76 and 470.48 is: 649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.38 : 1,010.76 = 470.48 : x
  2. Step 2: Convert to fraction form
    732.38/1,010.76 = 470.48/x
  3. Step 3: Cross multiply
    732.38x = 1,010.76 × 470.48
  4. Step 4: Simplify right side
    732.38x = 475,542.36
  5. Step 5: Solve for x
    x = 475,542.36/732.38
  6. Step 6: Final answer
    x = 649.31

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1.5x scale

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.