Home / 747,079.20-1,120,618.80-214,617.60

Finding the Fourth Proportional to 747,079.20, 1,120,618.80 and 214,617.60

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Solution

The fourth proportional to 747,079.20, 1,120,618.80 and 214,617.60 is: 321,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,079.20 : 1,120,618.80 = 214,617.60 : x
  2. Step 2: Convert to fraction form
    747,079.20/1,120,618.80 = 214,617.60/x
  3. Step 3: Cross multiply
    747,079.20x = 1,120,618.80 × 214,617.60
  4. Step 4: Simplify right side
    747,079.20x = 240,504,517,370.88
  5. Step 5: Solve for x
    x = 240,504,517,370.88/747,079.20
  6. Step 6: Final answer
    x = 321,926.40

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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.