Home / 1,786,991.20-2,680,987.20-722,780.80

Finding the Fourth Proportional to 1,786,991.20, 2,680,987.20 and 722,780.80

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Solution

The fourth proportional to 1,786,991.20, 2,680,987.20 and 722,780.80 is: 1,084,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,991.20 : 2,680,987.20 = 722,780.80 : x
  2. Step 2: Convert to fraction form
    1,786,991.20/2,680,987.20 = 722,780.80/x
  3. Step 3: Cross multiply
    1,786,991.20x = 2,680,987.20 × 722,780.80
  4. Step 4: Simplify right side
    1,786,991.20x = 1,937,766,073,205.76
  5. Step 5: Solve for x
    x = 1,937,766,073,205.76/1,786,991.20
  6. Step 6: Final answer
    x = 1,084,373.60

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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.