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Finding the Fourth Proportional to 576.13, 862.11 and 495.94

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Solution

The fourth proportional to 576.13, 862.11 and 495.94 is: 742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.13 : 862.11 = 495.94 : x
  2. Step 2: Convert to fraction form
    576.13/862.11 = 495.94/x
  3. Step 3: Cross multiply
    576.13x = 862.11 × 495.94
  4. Step 4: Simplify right side
    576.13x = 427,554.83
  5. Step 5: Solve for x
    x = 427,554.83/576.13
  6. Step 6: Final answer
    x = 742.12

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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.