Home / 842,519.31-1,263,778.97-281,553.81

Finding the Fourth Proportional to 842,519.31, 1,263,778.97 and 281,553.81

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Solution

The fourth proportional to 842,519.31, 1,263,778.97 and 281,553.81 is: 422,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,519.31 : 1,263,778.97 = 281,553.81 : x
  2. Step 2: Convert to fraction form
    842,519.31/1,263,778.97 = 281,553.81/x
  3. Step 3: Cross multiply
    842,519.31x = 1,263,778.97 × 281,553.81
  4. Step 4: Simplify right side
    842,519.31x = 355,821,784,001.38
  5. Step 5: Solve for x
    x = 355,821,784,001.38/842,519.31
  6. Step 6: Final answer
    x = 422,330.72

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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.