Home / 787,967.20-1,180,201.20-647,999.20

Finding the Fourth Proportional to 787,967.20, 1,180,201.20 and 647,999.20

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Solution

The fourth proportional to 787,967.20, 1,180,201.20 and 647,999.20 is: 970,559.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,967.20 : 1,180,201.20 = 647,999.20 : x
  2. Step 2: Convert to fraction form
    787,967.20/1,180,201.20 = 647,999.20/x
  3. Step 3: Cross multiply
    787,967.20x = 1,180,201.20 × 647,999.20
  4. Step 4: Simplify right side
    787,967.20x = 764,769,433,439.04
  5. Step 5: Solve for x
    x = 764,769,433,439.04/787,967.20
  6. Step 6: Final answer
    x = 970,559.98

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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.