Home / 421,949.25-632,923.88-126,461.25

Finding the Fourth Proportional to 421,949.25, 632,923.88 and 126,461.25

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Solution

The fourth proportional to 421,949.25, 632,923.88 and 126,461.25 is: 189,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,949.25 : 632,923.88 = 126,461.25 : x
  2. Step 2: Convert to fraction form
    421,949.25/632,923.88 = 126,461.25/x
  3. Step 3: Cross multiply
    421,949.25x = 632,923.88 × 126,461.25
  4. Step 4: Simplify right side
    421,949.25x = 80,040,344,387.34
  5. Step 5: Solve for x
    x = 80,040,344,387.34/421,949.25
  6. Step 6: Final answer
    x = 189,691.88

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Double scale
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Similar ratio
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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.