Home / 398,548.68-597,932.38-198,627.72

Finding the Fourth Proportional to 398,548.68, 597,932.38 and 198,627.72

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Solution

The fourth proportional to 398,548.68, 597,932.38 and 198,627.72 is: 297,996.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,548.68 : 597,932.38 = 198,627.72 : x
  2. Step 2: Convert to fraction form
    398,548.68/597,932.38 = 198,627.72/x
  3. Step 3: Cross multiply
    398,548.68x = 597,932.38 × 198,627.72
  4. Step 4: Simplify right side
    398,548.68x = 118,765,945,353.57
  5. Step 5: Solve for x
    x = 118,765,945,353.57/398,548.68
  6. Step 6: Final answer
    x = 297,996.08

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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.