Home / 2,187,916.05-3,279,249.68-1,122,409.65

Finding the Fourth Proportional to 2,187,916.05, 3,279,249.68 and 1,122,409.65

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Solution

The fourth proportional to 2,187,916.05, 3,279,249.68 and 1,122,409.65 is: 1,682,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,916.05 : 3,279,249.68 = 1,122,409.65 : x
  2. Step 2: Convert to fraction form
    2,187,916.05/3,279,249.68 = 1,122,409.65/x
  3. Step 3: Cross multiply
    2,187,916.05x = 3,279,249.68 × 1,122,409.65
  4. Step 4: Simplify right side
    2,187,916.05x = 3,680,661,479,979.36
  5. Step 5: Solve for x
    x = 3,680,661,479,979.36/2,187,916.05
  6. Step 6: Final answer
    x = 1,682,268.15

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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.