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Finding the Fourth Proportional to 732.32, 1,010.56 and 400.68

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Solution

The fourth proportional to 732.32, 1,010.56 and 400.68 is: 552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.32 : 1,010.56 = 400.68 : x
  2. Step 2: Convert to fraction form
    732.32/1,010.56 = 400.68/x
  3. Step 3: Cross multiply
    732.32x = 1,010.56 × 400.68
  4. Step 4: Simplify right side
    732.32x = 404,910.93
  5. Step 5: Solve for x
    x = 404,910.93/732.32
  6. Step 6: Final answer
    x = 552.92

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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.