Home / 980,190.80-1,469,940.60-349,125.20

Finding the Fourth Proportional to 980,190.80, 1,469,940.60 and 349,125.20

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Solution

The fourth proportional to 980,190.80, 1,469,940.60 and 349,125.20 is: 523,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,190.80 : 1,469,940.60 = 349,125.20 : x
  2. Step 2: Convert to fraction form
    980,190.80/1,469,940.60 = 349,125.20/x
  3. Step 3: Cross multiply
    980,190.80x = 1,469,940.60 × 349,125.20
  4. Step 4: Simplify right side
    980,190.80x = 513,193,305,963.12
  5. Step 5: Solve for x
    x = 513,193,305,963.12/980,190.80
  6. Step 6: Final answer
    x = 523,564.70

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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.