Home / 423,559.76-635,153.09-198,984.02

Finding the Fourth Proportional to 423,559.76, 635,153.09 and 198,984.02

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Solution

The fourth proportional to 423,559.76, 635,153.09 and 198,984.02 is: 298,388.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,559.76 : 635,153.09 = 198,984.02 : x
  2. Step 2: Convert to fraction form
    423,559.76/635,153.09 = 198,984.02/x
  3. Step 3: Cross multiply
    423,559.76x = 635,153.09 × 198,984.02
  4. Step 4: Simplify right side
    423,559.76x = 126,385,310,992.94
  5. Step 5: Solve for x
    x = 126,385,310,992.94/423,559.76
  6. Step 6: Final answer
    x = 298,388.38

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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.