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Finding the Fourth Proportional to 733.45, 1,098.73 and 425.11

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Solution

The fourth proportional to 733.45, 1,098.73 and 425.11 is: 636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.45 : 1,098.73 = 425.11 : x
  2. Step 2: Convert to fraction form
    733.45/1,098.73 = 425.11/x
  3. Step 3: Cross multiply
    733.45x = 1,098.73 × 425.11
  4. Step 4: Simplify right side
    733.45x = 467,081.11
  5. Step 5: Solve for x
    x = 467,081.11/733.45
  6. Step 6: Final answer
    x = 636.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.