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Finding the Fourth Proportional to 733.56, 1,012.29 and 401.97

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Solution

The fourth proportional to 733.56, 1,012.29 and 401.97 is: 554.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.56 : 1,012.29 = 401.97 : x
  2. Step 2: Convert to fraction form
    733.56/1,012.29 = 401.97/x
  3. Step 3: Cross multiply
    733.56x = 1,012.29 × 401.97
  4. Step 4: Simplify right side
    733.56x = 406,910.21
  5. Step 5: Solve for x
    x = 406,910.21/733.56
  6. Step 6: Final answer
    x = 554.71

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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.