Home / 432,975.60-649,463.40-327,999.60

Finding the Fourth Proportional to 432,975.60, 649,463.40 and 327,999.60

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Solution

The fourth proportional to 432,975.60, 649,463.40 and 327,999.60 is: 491,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,975.60 : 649,463.40 = 327,999.60 : x
  2. Step 2: Convert to fraction form
    432,975.60/649,463.40 = 327,999.60/x
  3. Step 3: Cross multiply
    432,975.60x = 649,463.40 × 327,999.60
  4. Step 4: Simplify right side
    432,975.60x = 213,023,735,414.64
  5. Step 5: Solve for x
    x = 213,023,735,414.64/432,975.60
  6. Step 6: Final answer
    x = 491,999.40

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Similar ratio
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1.5x scale

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.