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Finding the Fourth Proportional to 662.91, 993.09 and 635.10

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Solution

The fourth proportional to 662.91, 993.09 and 635.10 is: 951.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.91 : 993.09 = 635.10 : x
  2. Step 2: Convert to fraction form
    662.91/993.09 = 635.10/x
  3. Step 3: Cross multiply
    662.91x = 993.09 × 635.10
  4. Step 4: Simplify right side
    662.91x = 630,711.46
  5. Step 5: Solve for x
    x = 630,711.46/662.91
  6. Step 6: Final answer
    x = 951.43

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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.