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Finding the Fourth Proportional to 662.24, 990.92 and 499.52

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Solution

The fourth proportional to 662.24, 990.92 and 499.52 is: 747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.24 : 990.92 = 499.52 : x
  2. Step 2: Convert to fraction form
    662.24/990.92 = 499.52/x
  3. Step 3: Cross multiply
    662.24x = 990.92 × 499.52
  4. Step 4: Simplify right side
    662.24x = 494,984.36
  5. Step 5: Solve for x
    x = 494,984.36/662.24
  6. Step 6: Final answer
    x = 747.44

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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.