Home / 2,079,374.70-3,119,062.05-1,278,057.90

Finding the Fourth Proportional to 2,079,374.70, 3,119,062.05 and 1,278,057.90

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Solution

The fourth proportional to 2,079,374.70, 3,119,062.05 and 1,278,057.90 is: 1,917,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,374.70 : 3,119,062.05 = 1,278,057.90 : x
  2. Step 2: Convert to fraction form
    2,079,374.70/3,119,062.05 = 1,278,057.90/x
  3. Step 3: Cross multiply
    2,079,374.70x = 3,119,062.05 × 1,278,057.90
  4. Step 4: Simplify right side
    2,079,374.70x = 3,986,341,893,592.69
  5. Step 5: Solve for x
    x = 3,986,341,893,592.69/2,079,374.70
  6. Step 6: Final answer
    x = 1,917,086.85

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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.