Home / 2,187,918.30-3,279,253.05-1,122,411.90

Finding the Fourth Proportional to 2,187,918.30, 3,279,253.05 and 1,122,411.90

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Solution

The fourth proportional to 2,187,918.30, 3,279,253.05 and 1,122,411.90 is: 1,682,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,918.30 : 3,279,253.05 = 1,122,411.90 : x
  2. Step 2: Convert to fraction form
    2,187,918.30/3,279,253.05 = 1,122,411.90/x
  3. Step 3: Cross multiply
    2,187,918.30x = 3,279,253.05 × 1,122,411.90
  4. Step 4: Simplify right side
    2,187,918.30x = 3,680,672,646,431.29
  5. Step 5: Solve for x
    x = 3,680,672,646,431.29/2,187,918.30
  6. Step 6: Final answer
    x = 1,682,271.52

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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.