Home / 412,964.11-619,314.94-280,694.35

Finding the Fourth Proportional to 412,964.11, 619,314.94 and 280,694.35

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Solution

The fourth proportional to 412,964.11, 619,314.94 and 280,694.35 is: 420,952.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,964.11 : 619,314.94 = 280,694.35 : x
  2. Step 2: Convert to fraction form
    412,964.11/619,314.94 = 280,694.35/x
  3. Step 3: Cross multiply
    412,964.11x = 619,314.94 × 280,694.35
  4. Step 4: Simplify right side
    412,964.11x = 173,838,200,591.05
  5. Step 5: Solve for x
    x = 173,838,200,591.05/412,964.11
  6. Step 6: Final answer
    x = 420,952.33

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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.