Home / 979,732.26-1,469,691.13-380,739.60

Finding the Fourth Proportional to 979,732.26, 1,469,691.13 and 380,739.60

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Solution

The fourth proportional to 979,732.26, 1,469,691.13 and 380,739.60 is: 571,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,732.26 : 1,469,691.13 = 380,739.60 : x
  2. Step 2: Convert to fraction form
    979,732.26/1,469,691.13 = 380,739.60/x
  3. Step 3: Cross multiply
    979,732.26x = 1,469,691.13 × 380,739.60
  4. Step 4: Simplify right side
    979,732.26x = 559,569,612,007.90
  5. Step 5: Solve for x
    x = 559,569,612,007.90/979,732.26
  6. Step 6: Final answer
    x = 571,145.44

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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.