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Finding the Fourth Proportional to 488,508.72, 674,138.34 and 273,650.55

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Solution

The fourth proportional to 488,508.72, 674,138.34 and 273,650.55 is: 377,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,508.72 : 674,138.34 = 273,650.55 : x
  2. Step 2: Convert to fraction form
    488,508.72/674,138.34 = 273,650.55/x
  3. Step 3: Cross multiply
    488,508.72x = 674,138.34 × 273,650.55
  4. Step 4: Simplify right side
    488,508.72x = 184,478,327,517.09
  5. Step 5: Solve for x
    x = 184,478,327,517.09/488,508.72
  6. Step 6: Final answer
    x = 377,635.69

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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.