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Finding the Fourth Proportional to 575.85, 862.41 and 547.16

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Solution

The fourth proportional to 575.85, 862.41 and 547.16 is: 819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.85 : 862.41 = 547.16 : x
  2. Step 2: Convert to fraction form
    575.85/862.41 = 547.16/x
  3. Step 3: Cross multiply
    575.85x = 862.41 × 547.16
  4. Step 4: Simplify right side
    575.85x = 471,876.26
  5. Step 5: Solve for x
    x = 471,876.26/575.85
  6. Step 6: Final answer
    x = 819.44

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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.