Home / 2,080,720.80-3,121,081.20-660,920.40

Finding the Fourth Proportional to 2,080,720.80, 3,121,081.20 and 660,920.40

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Solution

The fourth proportional to 2,080,720.80, 3,121,081.20 and 660,920.40 is: 991,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,720.80 : 3,121,081.20 = 660,920.40 : x
  2. Step 2: Convert to fraction form
    2,080,720.80/3,121,081.20 = 660,920.40/x
  3. Step 3: Cross multiply
    2,080,720.80x = 3,121,081.20 × 660,920.40
  4. Step 4: Simplify right side
    2,080,720.80x = 2,062,786,235,136.48
  5. Step 5: Solve for x
    x = 2,062,786,235,136.48/2,080,720.80
  6. Step 6: Final answer
    x = 991,380.60

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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.