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Finding the Fourth Proportional to 610.32, 911.04 and 487.44

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Solution

The fourth proportional to 610.32, 911.04 and 487.44 is: 727.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.32 : 911.04 = 487.44 : x
  2. Step 2: Convert to fraction form
    610.32/911.04 = 487.44/x
  3. Step 3: Cross multiply
    610.32x = 911.04 × 487.44
  4. Step 4: Simplify right side
    610.32x = 444,077.34
  5. Step 5: Solve for x
    x = 444,077.34/610.32
  6. Step 6: Final answer
    x = 727.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.