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Finding the Fourth Proportional to 580,290.78, 800,595.98 and 379,203.42

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Solution

The fourth proportional to 580,290.78, 800,595.98 and 379,203.42 is: 523,166.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,290.78 : 800,595.98 = 379,203.42 : x
  2. Step 2: Convert to fraction form
    580,290.78/800,595.98 = 379,203.42/x
  3. Step 3: Cross multiply
    580,290.78x = 800,595.98 × 379,203.42
  4. Step 4: Simplify right side
    580,290.78x = 303,588,733,654.25
  5. Step 5: Solve for x
    x = 303,588,733,654.25/580,290.78
  6. Step 6: Final answer
    x = 523,166.56

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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.