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Finding the Fourth Proportional to 688.12, 950.04 and 426.29

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Solution

The fourth proportional to 688.12, 950.04 and 426.29 is: 588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    688.12 : 950.04 = 426.29 : x
  2. Step 2: Convert to fraction form
    688.12/950.04 = 426.29/x
  3. Step 3: Cross multiply
    688.12x = 950.04 × 426.29
  4. Step 4: Simplify right side
    688.12x = 404,987.80
  5. Step 5: Solve for x
    x = 404,987.80/688.12
  6. Step 6: Final answer
    x = 588.54

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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.