Home / 1,965,249.88-2,943,150.78-1,121,242.84

Finding the Fourth Proportional to 1,965,249.88, 2,943,150.78 and 1,121,242.84

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Solution

The fourth proportional to 1,965,249.88, 2,943,150.78 and 1,121,242.84 is: 1,679,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,249.88 : 2,943,150.78 = 1,121,242.84 : x
  2. Step 2: Convert to fraction form
    1,965,249.88/2,943,150.78 = 1,121,242.84/x
  3. Step 3: Cross multiply
    1,965,249.88x = 2,943,150.78 × 1,121,242.84
  4. Step 4: Simplify right side
    1,965,249.88x = 3,299,986,739,115.42
  5. Step 5: Solve for x
    x = 3,299,986,739,115.42/1,965,249.88
  6. Step 6: Final answer
    x = 1,679,169.03

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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.