Home / 1,398,832.80-2,098,249.07-387,954.75

Finding the Fourth Proportional to 1,398,832.80, 2,098,249.07 and 387,954.75

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Solution

The fourth proportional to 1,398,832.80, 2,098,249.07 and 387,954.75 is: 581,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,832.80 : 2,098,249.07 = 387,954.75 : x
  2. Step 2: Convert to fraction form
    1,398,832.80/2,098,249.07 = 387,954.75/x
  3. Step 3: Cross multiply
    1,398,832.80x = 2,098,249.07 × 387,954.75
  4. Step 4: Simplify right side
    1,398,832.80x = 814,025,693,389.58
  5. Step 5: Solve for x
    x = 814,025,693,389.58/1,398,832.80
  6. Step 6: Final answer
    x = 581,932.09

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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.