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Finding the Fourth Proportional to 587.57, 876.47 and 543.96

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Solution

The fourth proportional to 587.57, 876.47 and 543.96 is: 811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.57 : 876.47 = 543.96 : x
  2. Step 2: Convert to fraction form
    587.57/876.47 = 543.96/x
  3. Step 3: Cross multiply
    587.57x = 876.47 × 543.96
  4. Step 4: Simplify right side
    587.57x = 476,761.90
  5. Step 5: Solve for x
    x = 476,761.90/587.57
  6. Step 6: Final answer
    x = 811.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.