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Finding the Fourth Proportional to 587.25, 879.35 and 496.13

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Solution

The fourth proportional to 587.25, 879.35 and 496.13 is: 742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.25 : 879.35 = 496.13 : x
  2. Step 2: Convert to fraction form
    587.25/879.35 = 496.13/x
  3. Step 3: Cross multiply
    587.25x = 879.35 × 496.13
  4. Step 4: Simplify right side
    587.25x = 436,265.04
  5. Step 5: Solve for x
    x = 436,265.04/587.25
  6. Step 6: Final answer
    x = 742.89

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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.