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Finding the Fourth Proportional to 580,207.78, 800,481.45 and 379,120.42

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Solution

The fourth proportional to 580,207.78, 800,481.45 and 379,120.42 is: 523,052.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,207.78 : 800,481.45 = 379,120.42 : x
  2. Step 2: Convert to fraction form
    580,207.78/800,481.45 = 379,120.42/x
  3. Step 3: Cross multiply
    580,207.78x = 800,481.45 × 379,120.42
  4. Step 4: Simplify right side
    580,207.78x = 303,478,863,526.21
  5. Step 5: Solve for x
    x = 303,478,863,526.21/580,207.78
  6. Step 6: Final answer
    x = 523,052.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.