Home / 408,917.02-613,637.97-198,440.14

Finding the Fourth Proportional to 408,917.02, 613,637.97 and 198,440.14

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Solution

The fourth proportional to 408,917.02, 613,637.97 and 198,440.14 is: 297,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,917.02 : 613,637.97 = 198,440.14 : x
  2. Step 2: Convert to fraction form
    408,917.02/613,637.97 = 198,440.14/x
  3. Step 3: Cross multiply
    408,917.02x = 613,637.97 × 198,440.14
  4. Step 4: Simplify right side
    408,917.02x = 121,770,404,676.12
  5. Step 5: Solve for x
    x = 121,770,404,676.12/408,917.02
  6. Step 6: Final answer
    x = 297,787.57

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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.