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Finding the Fourth Proportional to 494.03, 680.87 and 461.09

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Solution

The fourth proportional to 494.03, 680.87 and 461.09 is: 635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.03 : 680.87 = 461.09 : x
  2. Step 2: Convert to fraction form
    494.03/680.87 = 461.09/x
  3. Step 3: Cross multiply
    494.03x = 680.87 × 461.09
  4. Step 4: Simplify right side
    494.03x = 313,945.20
  5. Step 5: Solve for x
    x = 313,945.20/494.03
  6. Step 6: Final answer
    x = 635.47

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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.