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Finding the Fourth Proportional to 482,496.88, 665,832.84 and 278,540.92

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Solution

The fourth proportional to 482,496.88, 665,832.84 and 278,540.92 is: 384,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,496.88 : 665,832.84 = 278,540.92 : x
  2. Step 2: Convert to fraction form
    482,496.88/665,832.84 = 278,540.92/x
  3. Step 3: Cross multiply
    482,496.88x = 665,832.84 × 278,540.92
  4. Step 4: Simplify right side
    482,496.88x = 185,461,691,819.81
  5. Step 5: Solve for x
    x = 185,461,691,819.81/482,496.88
  6. Step 6: Final answer
    x = 384,379.05

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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.