Home / 814,390.20-1,221,425.01-274,593.96

Finding the Fourth Proportional to 814,390.20, 1,221,425.01 and 274,593.96

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Solution

The fourth proportional to 814,390.20, 1,221,425.01 and 274,593.96 is: 411,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,390.20 : 1,221,425.01 = 274,593.96 : x
  2. Step 2: Convert to fraction form
    814,390.20/1,221,425.01 = 274,593.96/x
  3. Step 3: Cross multiply
    814,390.20x = 1,221,425.01 × 274,593.96
  4. Step 4: Simplify right side
    814,390.20x = 335,395,930,338.94
  5. Step 5: Solve for x
    x = 335,395,930,338.94/814,390.20
  6. Step 6: Final answer
    x = 411,836.89

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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.