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Finding the Fourth Proportional to 604.02, 834.39 and 487.38

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Solution

The fourth proportional to 604.02, 834.39 and 487.38 is: 673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.02 : 834.39 = 487.38 : x
  2. Step 2: Convert to fraction form
    604.02/834.39 = 487.38/x
  3. Step 3: Cross multiply
    604.02x = 834.39 × 487.38
  4. Step 4: Simplify right side
    604.02x = 406,665.00
  5. Step 5: Solve for x
    x = 406,665.00/604.02
  6. Step 6: Final answer
    x = 673.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.