Home / 979,759.38-1,469,732-380,766.80

Finding the Fourth Proportional to 979,759.38, 1,469,732 and 380,766.80

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Solution

The fourth proportional to 979,759.38, 1,469,732 and 380,766.80 is: 571,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,759.38 : 1,469,732 = 380,766.80 : x
  2. Step 2: Convert to fraction form
    979,759.38/1,469,732 = 380,766.80/x
  3. Step 3: Cross multiply
    979,759.38x = 1,469,732 × 380,766.80
  4. Step 4: Simplify right side
    979,759.38x = 559,625,150,497.60
  5. Step 5: Solve for x
    x = 559,625,150,497.60/979,759.38
  6. Step 6: Final answer
    x = 571,186.32

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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.