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Finding the Fourth Proportional to 512.07, 768.23 and 463.87

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Solution

The fourth proportional to 512.07, 768.23 and 463.87 is: 695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.07 : 768.23 = 463.87 : x
  2. Step 2: Convert to fraction form
    512.07/768.23 = 463.87/x
  3. Step 3: Cross multiply
    512.07x = 768.23 × 463.87
  4. Step 4: Simplify right side
    512.07x = 356,358.85
  5. Step 5: Solve for x
    x = 356,358.85/512.07
  6. Step 6: Final answer
    x = 695.92

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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.