Home / 2,132,609.82-3,198,914.73-712,665.90

Finding the Fourth Proportional to 2,132,609.82, 3,198,914.73 and 712,665.90

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Solution

The fourth proportional to 2,132,609.82, 3,198,914.73 and 712,665.90 is: 1,068,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,609.82 : 3,198,914.73 = 712,665.90 : x
  2. Step 2: Convert to fraction form
    2,132,609.82/3,198,914.73 = 712,665.90/x
  3. Step 3: Cross multiply
    2,132,609.82x = 3,198,914.73 × 712,665.90
  4. Step 4: Simplify right side
    2,132,609.82x = 2,279,757,445,078.71
  5. Step 5: Solve for x
    x = 2,279,757,445,078.71/2,132,609.82
  6. Step 6: Final answer
    x = 1,068,998.85

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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.