Home / 398,629.20-550,087.56-247,722.96

Finding the Fourth Proportional to 398,629.20, 550,087.56 and 247,722.96

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Solution

The fourth proportional to 398,629.20, 550,087.56 and 247,722.96 is: 341,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,629.20 : 550,087.56 = 247,722.96 : x
  2. Step 2: Convert to fraction form
    398,629.20/550,087.56 = 247,722.96/x
  3. Step 3: Cross multiply
    398,629.20x = 550,087.56 × 247,722.96
  4. Step 4: Simplify right side
    398,629.20x = 136,269,318,622.38
  5. Step 5: Solve for x
    x = 136,269,318,622.38/398,629.20
  6. Step 6: Final answer
    x = 341,844.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.