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Finding the Fourth Proportional to 486,383.97, 671,140.44 and 271,519.32

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Solution

The fourth proportional to 486,383.97, 671,140.44 and 271,519.32 is: 374,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,383.97 : 671,140.44 = 271,519.32 : x
  2. Step 2: Convert to fraction form
    486,383.97/671,140.44 = 271,519.32/x
  3. Step 3: Cross multiply
    486,383.97x = 671,140.44 × 271,519.32
  4. Step 4: Simplify right side
    486,383.97x = 182,227,595,893.30
  5. Step 5: Solve for x
    x = 182,227,595,893.30/486,383.97
  6. Step 6: Final answer
    x = 374,657.90

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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.