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Finding the Fourth Proportional to 732.41, 1,010.72 and 400.83

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Solution

The fourth proportional to 732.41, 1,010.72 and 400.83 is: 553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.41 : 1,010.72 = 400.83 : x
  2. Step 2: Convert to fraction form
    732.41/1,010.72 = 400.83/x
  3. Step 3: Cross multiply
    732.41x = 1,010.72 × 400.83
  4. Step 4: Simplify right side
    732.41x = 405,122.37
  5. Step 5: Solve for x
    x = 405,122.37/732.41
  6. Step 6: Final answer
    x = 553.14

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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.