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Finding the Fourth Proportional to 361,979.01, 543,077.48 and 326,272.79

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Solution

The fourth proportional to 361,979.01, 543,077.48 and 326,272.79 is: 489,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,979.01 : 543,077.48 = 326,272.79 : x
  2. Step 2: Convert to fraction form
    361,979.01/543,077.48 = 326,272.79/x
  3. Step 3: Cross multiply
    361,979.01x = 543,077.48 × 326,272.79
  4. Step 4: Simplify right side
    361,979.01x = 177,191,406,759.15
  5. Step 5: Solve for x
    x = 177,191,406,759.15/361,979.01
  6. Step 6: Final answer
    x = 489,507.41

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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.