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Finding the Fourth Proportional to 732.38, 1,010.37 and 480.21

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Solution

The fourth proportional to 732.38, 1,010.37 and 480.21 is: 662.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.38 : 1,010.37 = 480.21 : x
  2. Step 2: Convert to fraction form
    732.38/1,010.37 = 480.21/x
  3. Step 3: Cross multiply
    732.38x = 1,010.37 × 480.21
  4. Step 4: Simplify right side
    732.38x = 485,193.47
  5. Step 5: Solve for x
    x = 485,193.47/732.38
  6. Step 6: Final answer
    x = 662.49

Related Problems

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Half scale
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Double scale
Find fourth proportional to 733.38, 1,011.75 and 481.21
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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.