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Finding the Fourth Proportional to 552,249.60, 827,791.20 and 315,081.60

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Solution

The fourth proportional to 552,249.60, 827,791.20 and 315,081.60 is: 472,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,249.60 : 827,791.20 = 315,081.60 : x
  2. Step 2: Convert to fraction form
    552,249.60/827,791.20 = 315,081.60/x
  3. Step 3: Cross multiply
    552,249.60x = 827,791.20 × 315,081.60
  4. Step 4: Simplify right side
    552,249.60x = 260,821,775,761.92
  5. Step 5: Solve for x
    x = 260,821,775,761.92/552,249.60
  6. Step 6: Final answer
    x = 472,289.66

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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.