Home / 782,085.43-1,173,571.92-422,251.48

Finding the Fourth Proportional to 782,085.43, 1,173,571.92 and 422,251.48

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Solution

The fourth proportional to 782,085.43, 1,173,571.92 and 422,251.48 is: 633,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,085.43 : 1,173,571.92 = 422,251.48 : x
  2. Step 2: Convert to fraction form
    782,085.43/1,173,571.92 = 422,251.48/x
  3. Step 3: Cross multiply
    782,085.43x = 1,173,571.92 × 422,251.48
  4. Step 4: Simplify right side
    782,085.43x = 495,542,480,106.44
  5. Step 5: Solve for x
    x = 495,542,480,106.44/782,085.43
  6. Step 6: Final answer
    x = 633,616.82

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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.