Home / 979,724.97-1,469,965.32-381,107.84

Finding the Fourth Proportional to 979,724.97, 1,469,965.32 and 381,107.84

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Solution

The fourth proportional to 979,724.97, 1,469,965.32 and 381,107.84 is: 571,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,724.97 : 1,469,965.32 = 381,107.84 : x
  2. Step 2: Convert to fraction form
    979,724.97/1,469,965.32 = 381,107.84/x
  3. Step 3: Cross multiply
    979,724.97x = 1,469,965.32 × 381,107.84
  4. Step 4: Simplify right side
    979,724.97x = 560,215,300,630.28
  5. Step 5: Solve for x
    x = 560,215,300,630.28/979,724.97
  6. Step 6: Final answer
    x = 571,808.74

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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.