Home / 2,187,826.68-3,019,249.20-1,207,763.45

Finding the Fourth Proportional to 2,187,826.68, 3,019,249.20 and 1,207,763.45

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Solution

The fourth proportional to 2,187,826.68, 3,019,249.20 and 1,207,763.45 is: 1,666,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,826.68 : 3,019,249.20 = 1,207,763.45 : x
  2. Step 2: Convert to fraction form
    2,187,826.68/3,019,249.20 = 1,207,763.45/x
  3. Step 3: Cross multiply
    2,187,826.68x = 3,019,249.20 × 1,207,763.45
  4. Step 4: Simplify right side
    2,187,826.68x = 3,646,538,824,163.12
  5. Step 5: Solve for x
    x = 3,646,538,824,163.12/2,187,826.68
  6. Step 6: Final answer
    x = 1,666,740.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.