Home / 1,340,040.40-2,010,060.60-809,198.80

Finding the Fourth Proportional to 1,340,040.40, 2,010,060.60 and 809,198.80

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Solution

The fourth proportional to 1,340,040.40, 2,010,060.60 and 809,198.80 is: 1,213,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,040.40 : 2,010,060.60 = 809,198.80 : x
  2. Step 2: Convert to fraction form
    1,340,040.40/2,010,060.60 = 809,198.80/x
  3. Step 3: Cross multiply
    1,340,040.40x = 2,010,060.60 × 809,198.80
  4. Step 4: Simplify right side
    1,340,040.40x = 1,626,538,625,447.28
  5. Step 5: Solve for x
    x = 1,626,538,625,447.28/1,340,040.40
  6. Step 6: Final answer
    x = 1,213,798.20

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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.