Home / 726,672.60-1,089,231.30-327,245.40

Finding the Fourth Proportional to 726,672.60, 1,089,231.30 and 327,245.40

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Solution

The fourth proportional to 726,672.60, 1,089,231.30 and 327,245.40 is: 490,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,672.60 : 1,089,231.30 = 327,245.40 : x
  2. Step 2: Convert to fraction form
    726,672.60/1,089,231.30 = 327,245.40/x
  3. Step 3: Cross multiply
    726,672.60x = 1,089,231.30 × 327,245.40
  4. Step 4: Simplify right side
    726,672.60x = 356,445,932,461.02
  5. Step 5: Solve for x
    x = 356,445,932,461.02/726,672.60
  6. Step 6: Final answer
    x = 490,517.92

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1.5x scale

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.