Home / 815,961.92-1,223,067.84-394,658.24

Finding the Fourth Proportional to 815,961.92, 1,223,067.84 and 394,658.24

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Solution

The fourth proportional to 815,961.92, 1,223,067.84 and 394,658.24 is: 591,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,961.92 : 1,223,067.84 = 394,658.24 : x
  2. Step 2: Convert to fraction form
    815,961.92/1,223,067.84 = 394,658.24/x
  3. Step 3: Cross multiply
    815,961.92x = 1,223,067.84 × 394,658.24
  4. Step 4: Simplify right side
    815,961.92x = 482,693,801,135.00
  5. Step 5: Solve for x
    x = 482,693,801,135.00/815,961.92
  6. Step 6: Final answer
    x = 591,564.13

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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.