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Finding the Fourth Proportional to 488,578.96, 674,258.32 and 273,720.80

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Solution

The fourth proportional to 488,578.96, 674,258.32 and 273,720.80 is: 377,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,578.96 : 674,258.32 = 273,720.80 : x
  2. Step 2: Convert to fraction form
    488,578.96/674,258.32 = 273,720.80/x
  3. Step 3: Cross multiply
    488,578.96x = 674,258.32 × 273,720.80
  4. Step 4: Simplify right side
    488,578.96x = 184,558,526,757.06
  5. Step 5: Solve for x
    x = 184,558,526,757.06/488,578.96
  6. Step 6: Final answer
    x = 377,745.55

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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.