Home / 979,755.12-1,469,959.92-380,735.82

Finding the Fourth Proportional to 979,755.12, 1,469,959.92 and 380,735.82

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Solution

The fourth proportional to 979,755.12, 1,469,959.92 and 380,735.82 is: 571,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,755.12 : 1,469,959.92 = 380,735.82 : x
  2. Step 2: Convert to fraction form
    979,755.12/1,469,959.92 = 380,735.82/x
  3. Step 3: Cross multiply
    979,755.12x = 1,469,959.92 × 380,735.82
  4. Step 4: Simplify right side
    979,755.12x = 559,666,395,508.33
  5. Step 5: Solve for x
    x = 559,666,395,508.33/979,755.12
  6. Step 6: Final answer
    x = 571,230.90

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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.