Home / 979,872.14-1,469,236.20-380,132.54

Finding the Fourth Proportional to 979,872.14, 1,469,236.20 and 380,132.54

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Solution

The fourth proportional to 979,872.14, 1,469,236.20 and 380,132.54 is: 569,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,872.14 : 1,469,236.20 = 380,132.54 : x
  2. Step 2: Convert to fraction form
    979,872.14/1,469,236.20 = 380,132.54/x
  3. Step 3: Cross multiply
    979,872.14x = 1,469,236.20 × 380,132.54
  4. Step 4: Simplify right side
    979,872.14x = 558,504,488,565.95
  5. Step 5: Solve for x
    x = 558,504,488,565.95/979,872.14
  6. Step 6: Final answer
    x = 569,976.90

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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.