Home / 815,963.92-1,223,070.84-394,660.24

Finding the Fourth Proportional to 815,963.92, 1,223,070.84 and 394,660.24

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Solution

The fourth proportional to 815,963.92, 1,223,070.84 and 394,660.24 is: 591,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,963.92 : 1,223,070.84 = 394,660.24 : x
  2. Step 2: Convert to fraction form
    815,963.92/1,223,070.84 = 394,660.24/x
  3. Step 3: Cross multiply
    815,963.92x = 1,223,070.84 × 394,660.24
  4. Step 4: Simplify right side
    815,963.92x = 482,697,431,251.40
  5. Step 5: Solve for x
    x = 482,697,431,251.40/815,963.92
  6. Step 6: Final answer
    x = 591,567.13

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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.