Home / 521,725.20-782,004.60-222,154.80

Finding the Fourth Proportional to 521,725.20, 782,004.60 and 222,154.80

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Solution

The fourth proportional to 521,725.20, 782,004.60 and 222,154.80 is: 332,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,725.20 : 782,004.60 = 222,154.80 : x
  2. Step 2: Convert to fraction form
    521,725.20/782,004.60 = 222,154.80/x
  3. Step 3: Cross multiply
    521,725.20x = 782,004.60 × 222,154.80
  4. Step 4: Simplify right side
    521,725.20x = 173,726,075,512.08
  5. Step 5: Solve for x
    x = 173,726,075,512.08/521,725.20
  6. Step 6: Final answer
    x = 332,983.87

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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.