Home / 2,080,711.80-3,121,067.70-660,911.40

Finding the Fourth Proportional to 2,080,711.80, 3,121,067.70 and 660,911.40

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Solution

The fourth proportional to 2,080,711.80, 3,121,067.70 and 660,911.40 is: 991,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,711.80 : 3,121,067.70 = 660,911.40 : x
  2. Step 2: Convert to fraction form
    2,080,711.80/3,121,067.70 = 660,911.40/x
  3. Step 3: Cross multiply
    2,080,711.80x = 3,121,067.70 × 660,911.40
  4. Step 4: Simplify right side
    2,080,711.80x = 2,062,749,223,101.78
  5. Step 5: Solve for x
    x = 2,062,749,223,101.78/2,080,711.80
  6. Step 6: Final answer
    x = 991,367.10

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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.