Home / 787,229.20-1,180,843.80-726,403.60

Finding the Fourth Proportional to 787,229.20, 1,180,843.80 and 726,403.60

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Solution

The fourth proportional to 787,229.20, 1,180,843.80 and 726,403.60 is: 1,089,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,229.20 : 1,180,843.80 = 726,403.60 : x
  2. Step 2: Convert to fraction form
    787,229.20/1,180,843.80 = 726,403.60/x
  3. Step 3: Cross multiply
    787,229.20x = 1,180,843.80 × 726,403.60
  4. Step 4: Simplify right side
    787,229.20x = 857,769,187,357.68
  5. Step 5: Solve for x
    x = 857,769,187,357.68/787,229.20
  6. Step 6: Final answer
    x = 1,089,605.40

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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.