Home / 814,278.43-1,221,501.44-281,798.65

Finding the Fourth Proportional to 814,278.43, 1,221,501.44 and 281,798.65

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Solution

The fourth proportional to 814,278.43, 1,221,501.44 and 281,798.65 is: 422,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,278.43 : 1,221,501.44 = 281,798.65 : x
  2. Step 2: Convert to fraction form
    814,278.43/1,221,501.44 = 281,798.65/x
  3. Step 3: Cross multiply
    814,278.43x = 1,221,501.44 × 281,798.65
  4. Step 4: Simplify right side
    814,278.43x = 344,217,456,765.06
  5. Step 5: Solve for x
    x = 344,217,456,765.06/814,278.43
  6. Step 6: Final answer
    x = 422,726.97

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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.