Home / 2,131,229.22-3,197,348.04-691,909.83

Finding the Fourth Proportional to 2,131,229.22, 3,197,348.04 and 691,909.83

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Solution

The fourth proportional to 2,131,229.22, 3,197,348.04 and 691,909.83 is: 1,038,028.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,229.22 : 3,197,348.04 = 691,909.83 : x
  2. Step 2: Convert to fraction form
    2,131,229.22/3,197,348.04 = 691,909.83/x
  3. Step 3: Cross multiply
    2,131,229.22x = 3,197,348.04 × 691,909.83
  4. Step 4: Simplify right side
    2,131,229.22x = 2,212,276,538,807.23
  5. Step 5: Solve for x
    x = 2,212,276,538,807.23/2,131,229.22
  6. Step 6: Final answer
    x = 1,038,028.44

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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.