Home / 681,479.38-1,022,222.85-281,903.68

Finding the Fourth Proportional to 681,479.38, 1,022,222.85 and 281,903.68

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Solution

The fourth proportional to 681,479.38, 1,022,222.85 and 281,903.68 is: 422,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,479.38 : 1,022,222.85 = 281,903.68 : x
  2. Step 2: Convert to fraction form
    681,479.38/1,022,222.85 = 281,903.68/x
  3. Step 3: Cross multiply
    681,479.38x = 1,022,222.85 × 281,903.68
  4. Step 4: Simplify right side
    681,479.38x = 288,168,383,195.09
  5. Step 5: Solve for x
    x = 288,168,383,195.09/681,479.38
  6. Step 6: Final answer
    x = 422,857.08

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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.