Home / 814,306.72-1,221,441.72-281,795.68

Finding the Fourth Proportional to 814,306.72, 1,221,441.72 and 281,795.68

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Solution

The fourth proportional to 814,306.72, 1,221,441.72 and 281,795.68 is: 422,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,306.72 : 1,221,441.72 = 281,795.68 : x
  2. Step 2: Convert to fraction form
    814,306.72/1,221,441.72 = 281,795.68/x
  3. Step 3: Cross multiply
    814,306.72x = 1,221,441.72 × 281,795.68
  4. Step 4: Simplify right side
    814,306.72x = 344,197,000,067.77
  5. Step 5: Solve for x
    x = 344,197,000,067.77/814,306.72
  6. Step 6: Final answer
    x = 422,687.17

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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.