Home / 852,787.62-1,279,163.70-284,209.92

Finding the Fourth Proportional to 852,787.62, 1,279,163.70 and 284,209.92

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Solution

The fourth proportional to 852,787.62, 1,279,163.70 and 284,209.92 is: 426,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,787.62 : 1,279,163.70 = 284,209.92 : x
  2. Step 2: Convert to fraction form
    852,787.62/1,279,163.70 = 284,209.92/x
  3. Step 3: Cross multiply
    852,787.62x = 1,279,163.70 × 284,209.92
  4. Step 4: Simplify right side
    852,787.62x = 363,551,012,843.90
  5. Step 5: Solve for x
    x = 363,551,012,843.90/852,787.62
  6. Step 6: Final answer
    x = 426,308.97

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1.5x scale

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.