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Finding the Fourth Proportional to 488,867.32, 674,634.78 and 274,007.44

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Solution

The fourth proportional to 488,867.32, 674,634.78 and 274,007.44 is: 378,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,867.32 : 674,634.78 = 274,007.44 : x
  2. Step 2: Convert to fraction form
    488,867.32/674,634.78 = 274,007.44/x
  3. Step 3: Cross multiply
    488,867.32x = 674,634.78 × 274,007.44
  4. Step 4: Simplify right side
    488,867.32x = 184,854,949,002.76
  5. Step 5: Solve for x
    x = 184,854,949,002.76/488,867.32
  6. Step 6: Final answer
    x = 378,129.08

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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.