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Finding the Fourth Proportional to 600.68, 902.87 and 439.09

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Solution

The fourth proportional to 600.68, 902.87 and 439.09 is: 659.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.68 : 902.87 = 439.09 : x
  2. Step 2: Convert to fraction form
    600.68/902.87 = 439.09/x
  3. Step 3: Cross multiply
    600.68x = 902.87 × 439.09
  4. Step 4: Simplify right side
    600.68x = 396,441.19
  5. Step 5: Solve for x
    x = 396,441.19/600.68
  6. Step 6: Final answer
    x = 659.99

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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.