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Finding the Fourth Proportional to 950.49, 1,425.12 and 624.87

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Solution

The fourth proportional to 950.49, 1,425.12 and 624.87 is: 936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.49 : 1,425.12 = 624.87 : x
  2. Step 2: Convert to fraction form
    950.49/1,425.12 = 624.87/x
  3. Step 3: Cross multiply
    950.49x = 1,425.12 × 624.87
  4. Step 4: Simplify right side
    950.49x = 890,514.73
  5. Step 5: Solve for x
    x = 890,514.73/950.49
  6. Step 6: Final answer
    x = 936.90

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Double scale
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1.5x scale

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.