Home / 828,198.40-1,242,470.40-472,921.60

Finding the Fourth Proportional to 828,198.40, 1,242,470.40 and 472,921.60

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Solution

The fourth proportional to 828,198.40, 1,242,470.40 and 472,921.60 is: 709,481.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,198.40 : 1,242,470.40 = 472,921.60 : x
  2. Step 2: Convert to fraction form
    828,198.40/1,242,470.40 = 472,921.60/x
  3. Step 3: Cross multiply
    828,198.40x = 1,242,470.40 × 472,921.60
  4. Step 4: Simplify right side
    828,198.40x = 587,591,089,520.64
  5. Step 5: Solve for x
    x = 587,591,089,520.64/828,198.40
  6. Step 6: Final answer
    x = 709,481.07

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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.