Home / 852,979.78-1,279,471.30-221,892.58

Finding the Fourth Proportional to 852,979.78, 1,279,471.30 and 221,892.58

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Solution

The fourth proportional to 852,979.78, 1,279,471.30 and 221,892.58 is: 332,839.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,979.78 : 1,279,471.30 = 221,892.58 : x
  2. Step 2: Convert to fraction form
    852,979.78/1,279,471.30 = 221,892.58/x
  3. Step 3: Cross multiply
    852,979.78x = 1,279,471.30 × 221,892.58
  4. Step 4: Simplify right side
    852,979.78x = 283,905,187,792.95
  5. Step 5: Solve for x
    x = 283,905,187,792.95/852,979.78
  6. Step 6: Final answer
    x = 332,839.29

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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.