Home / 1,278,824.40-1,917,530.10-804,494.88

Finding the Fourth Proportional to 1,278,824.40, 1,917,530.10 and 804,494.88

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Solution

The fourth proportional to 1,278,824.40, 1,917,530.10 and 804,494.88 is: 1,206,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,824.40 : 1,917,530.10 = 804,494.88 : x
  2. Step 2: Convert to fraction form
    1,278,824.40/1,917,530.10 = 804,494.88/x
  3. Step 3: Cross multiply
    1,278,824.40x = 1,917,530.10 × 804,494.88
  4. Step 4: Simplify right side
    1,278,824.40x = 1,542,643,147,695.89
  5. Step 5: Solve for x
    x = 1,542,643,147,695.89/1,278,824.40
  6. Step 6: Final answer
    x = 1,206,297.87

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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.