Home / 2,278,145.39-3,143,839.64-1,245,658.43

Finding the Fourth Proportional to 2,278,145.39, 3,143,839.64 and 1,245,658.43

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Solution

The fourth proportional to 2,278,145.39, 3,143,839.64 and 1,245,658.43 is: 1,719,008.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,145.39 : 3,143,839.64 = 1,245,658.43 : x
  2. Step 2: Convert to fraction form
    2,278,145.39/3,143,839.64 = 1,245,658.43/x
  3. Step 3: Cross multiply
    2,278,145.39x = 3,143,839.64 × 1,245,658.43
  4. Step 4: Simplify right side
    2,278,145.39x = 3,916,150,351,765.47
  5. Step 5: Solve for x
    x = 3,916,150,351,765.47/2,278,145.39
  6. Step 6: Final answer
    x = 1,719,008.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.