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Finding the Fourth Proportional to 609.02, 911.01 and 487.52

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Solution

The fourth proportional to 609.02, 911.01 and 487.52 is: 729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.02 : 911.01 = 487.52 : x
  2. Step 2: Convert to fraction form
    609.02/911.01 = 487.52/x
  3. Step 3: Cross multiply
    609.02x = 911.01 × 487.52
  4. Step 4: Simplify right side
    609.02x = 444,135.60
  5. Step 5: Solve for x
    x = 444,135.60/609.02
  6. Step 6: Final answer
    x = 729.26

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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.