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Finding the Fourth Proportional to 732.12, 1,010.31 and 400.53

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Solution

The fourth proportional to 732.12, 1,010.31 and 400.53 is: 552.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.12 : 1,010.31 = 400.53 : x
  2. Step 2: Convert to fraction form
    732.12/1,010.31 = 400.53/x
  3. Step 3: Cross multiply
    732.12x = 1,010.31 × 400.53
  4. Step 4: Simplify right side
    732.12x = 404,655.41
  5. Step 5: Solve for x
    x = 404,655.41/732.12
  6. Step 6: Final answer
    x = 552.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.