Home / 2,138,711.74-3,208,067.64-718,767.86

Finding the Fourth Proportional to 2,138,711.74, 3,208,067.64 and 718,767.86

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Solution

The fourth proportional to 2,138,711.74, 3,208,067.64 and 718,767.86 is: 1,078,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,711.74 : 3,208,067.64 = 718,767.86 : x
  2. Step 2: Convert to fraction form
    2,138,711.74/3,208,067.64 = 718,767.86/x
  3. Step 3: Cross multiply
    2,138,711.74x = 3,208,067.64 × 718,767.86
  4. Step 4: Simplify right side
    2,138,711.74x = 2,305,855,912,338.05
  5. Step 5: Solve for x
    x = 2,305,855,912,338.05/2,138,711.74
  6. Step 6: Final answer
    x = 1,078,151.80

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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.