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Finding the Fourth Proportional to 635.56, 949.49 and 631.96

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Solution

The fourth proportional to 635.56, 949.49 and 631.96 is: 944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.56 : 949.49 = 631.96 : x
  2. Step 2: Convert to fraction form
    635.56/949.49 = 631.96/x
  3. Step 3: Cross multiply
    635.56x = 949.49 × 631.96
  4. Step 4: Simplify right side
    635.56x = 600,039.70
  5. Step 5: Solve for x
    x = 600,039.70/635.56
  6. Step 6: Final answer
    x = 944.11

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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.