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Finding the Fourth Proportional to 495,659.59, 743,490.09 and 121,682.59

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Solution

The fourth proportional to 495,659.59, 743,490.09 and 121,682.59 is: 182,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,659.59 : 743,490.09 = 121,682.59 : x
  2. Step 2: Convert to fraction form
    495,659.59/743,490.09 = 121,682.59/x
  3. Step 3: Cross multiply
    495,659.59x = 743,490.09 × 121,682.59
  4. Step 4: Simplify right side
    495,659.59x = 90,469,799,790.53
  5. Step 5: Solve for x
    x = 90,469,799,790.53/495,659.59
  6. Step 6: Final answer
    x = 182,524.06

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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.