Home / 2,115,221.88-3,171,640.50-694,896.60

Finding the Fourth Proportional to 2,115,221.88, 3,171,640.50 and 694,896.60

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Solution

The fourth proportional to 2,115,221.88, 3,171,640.50 and 694,896.60 is: 1,041,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,221.88 : 3,171,640.50 = 694,896.60 : x
  2. Step 2: Convert to fraction form
    2,115,221.88/3,171,640.50 = 694,896.60/x
  3. Step 3: Cross multiply
    2,115,221.88x = 3,171,640.50 × 694,896.60
  4. Step 4: Simplify right side
    2,115,221.88x = 2,203,962,199,872.30
  5. Step 5: Solve for x
    x = 2,203,962,199,872.30/2,115,221.88
  6. Step 6: Final answer
    x = 1,041,953.20

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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.