Home / 2,081,191.60-3,121,204.20-661,682.80

Finding the Fourth Proportional to 2,081,191.60, 3,121,204.20 and 661,682.80

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Solution

The fourth proportional to 2,081,191.60, 3,121,204.20 and 661,682.80 is: 992,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081,191.60 : 3,121,204.20 = 661,682.80 : x
  2. Step 2: Convert to fraction form
    2,081,191.60/3,121,204.20 = 661,682.80/x
  3. Step 3: Cross multiply
    2,081,191.60x = 3,121,204.20 × 661,682.80
  4. Step 4: Simplify right side
    2,081,191.60x = 2,065,247,134,427.76
  5. Step 5: Solve for x
    x = 2,065,247,134,427.76/2,081,191.60
  6. Step 6: Final answer
    x = 992,338.78

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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.