Home / 2,628,193.80-3,940,103.70-1,113,040.20

Finding the Fourth Proportional to 2,628,193.80, 3,940,103.70 and 1,113,040.20

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Solution

The fourth proportional to 2,628,193.80, 3,940,103.70 and 1,113,040.20 is: 1,668,634.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,193.80 : 3,940,103.70 = 1,113,040.20 : x
  2. Step 2: Convert to fraction form
    2,628,193.80/3,940,103.70 = 1,113,040.20/x
  3. Step 3: Cross multiply
    2,628,193.80x = 3,940,103.70 × 1,113,040.20
  4. Step 4: Simplify right side
    2,628,193.80x = 4,385,493,810,268.74
  5. Step 5: Solve for x
    x = 4,385,493,810,268.74/2,628,193.80
  6. Step 6: Final answer
    x = 1,668,634.11

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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.