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Finding the Fourth Proportional to 488,969.61, 674,819.51 and 271,248.43

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Solution

The fourth proportional to 488,969.61, 674,819.51 and 271,248.43 is: 374,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,969.61 : 674,819.51 = 271,248.43 : x
  2. Step 2: Convert to fraction form
    488,969.61/674,819.51 = 271,248.43/x
  3. Step 3: Cross multiply
    488,969.61x = 674,819.51 × 271,248.43
  4. Step 4: Simplify right side
    488,969.61x = 183,043,731,264.63
  5. Step 5: Solve for x
    x = 183,043,731,264.63/488,969.61
  6. Step 6: Final answer
    x = 374,345.83

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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.