Home / 2,187,335.80-3,278,546.10-1,121,966.20

Finding the Fourth Proportional to 2,187,335.80, 3,278,546.10 and 1,121,966.20

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Solution

The fourth proportional to 2,187,335.80, 3,278,546.10 and 1,121,966.20 is: 1,681,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,335.80 : 3,278,546.10 = 1,121,966.20 : x
  2. Step 2: Convert to fraction form
    2,187,335.80/3,278,546.10 = 1,121,966.20/x
  3. Step 3: Cross multiply
    2,187,335.80x = 3,278,546.10 × 1,121,966.20
  4. Step 4: Simplify right side
    2,187,335.80x = 3,678,417,909,341.82
  5. Step 5: Solve for x
    x = 3,678,417,909,341.82/2,187,335.80
  6. Step 6: Final answer
    x = 1,681,688.71

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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.