Home / 1,990,610.80-2,747,029.08-1,131,103.60

Finding the Fourth Proportional to 1,990,610.80, 2,747,029.08 and 1,131,103.60

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Solution

The fourth proportional to 1,990,610.80, 2,747,029.08 and 1,131,103.60 is: 1,560,915.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,610.80 : 2,747,029.08 = 1,131,103.60 : x
  2. Step 2: Convert to fraction form
    1,990,610.80/2,747,029.08 = 1,131,103.60/x
  3. Step 3: Cross multiply
    1,990,610.80x = 2,747,029.08 × 1,131,103.60
  4. Step 4: Simplify right side
    1,990,610.80x = 3,107,174,481,692.69
  5. Step 5: Solve for x
    x = 3,107,174,481,692.69/1,990,610.80
  6. Step 6: Final answer
    x = 1,560,915.11

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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.