Home / 2,208,659.80-3,311,240.10-1,211,387.80

Finding the Fourth Proportional to 2,208,659.80, 3,311,240.10 and 1,211,387.80

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Solution

The fourth proportional to 2,208,659.80, 3,311,240.10 and 1,211,387.80 is: 1,816,122.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208,659.80 : 3,311,240.10 = 1,211,387.80 : x
  2. Step 2: Convert to fraction form
    2,208,659.80/3,311,240.10 = 1,211,387.80/x
  3. Step 3: Cross multiply
    2,208,659.80x = 3,311,240.10 × 1,211,387.80
  4. Step 4: Simplify right side
    2,208,659.80x = 4,011,195,860,010.78
  5. Step 5: Solve for x
    x = 4,011,195,860,010.78/2,208,659.80
  6. Step 6: Final answer
    x = 1,816,122.09

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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.