Home / 2,079,384.70-3,119,077.05-1,278,067.90

Finding the Fourth Proportional to 2,079,384.70, 3,119,077.05 and 1,278,067.90

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Solution

The fourth proportional to 2,079,384.70, 3,119,077.05 and 1,278,067.90 is: 1,917,101.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,384.70 : 3,119,077.05 = 1,278,067.90 : x
  2. Step 2: Convert to fraction form
    2,079,384.70/3,119,077.05 = 1,278,067.90/x
  3. Step 3: Cross multiply
    2,079,384.70x = 3,119,077.05 × 1,278,067.90
  4. Step 4: Simplify right side
    2,079,384.70x = 3,986,392,255,231.69
  5. Step 5: Solve for x
    x = 3,986,392,255,231.69/2,079,384.70
  6. Step 6: Final answer
    x = 1,917,101.85

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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.