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Finding the Fourth Proportional to 733.89, 1,100.55 and 490.89

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Solution

The fourth proportional to 733.89, 1,100.55 and 490.89 is: 736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.89 : 1,100.55 = 490.89 : x
  2. Step 2: Convert to fraction form
    733.89/1,100.55 = 490.89/x
  3. Step 3: Cross multiply
    733.89x = 1,100.55 × 490.89
  4. Step 4: Simplify right side
    733.89x = 540,248.99
  5. Step 5: Solve for x
    x = 540,248.99/733.89
  6. Step 6: Final answer
    x = 736.14

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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.