Home / 2,115,812.24-3,174,255.39-979,393.58

Finding the Fourth Proportional to 2,115,812.24, 3,174,255.39 and 979,393.58

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Solution

The fourth proportional to 2,115,812.24, 3,174,255.39 and 979,393.58 is: 1,469,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,812.24 : 3,174,255.39 = 979,393.58 : x
  2. Step 2: Convert to fraction form
    2,115,812.24/3,174,255.39 = 979,393.58/x
  3. Step 3: Cross multiply
    2,115,812.24x = 3,174,255.39 × 979,393.58
  4. Step 4: Simplify right side
    2,115,812.24x = 3,108,845,350,246.40
  5. Step 5: Solve for x
    x = 3,108,845,350,246.40/2,115,812.24
  6. Step 6: Final answer
    x = 1,469,338.96

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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.