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Finding the Fourth Proportional to 495,542.55, 743,313.84 and 215,059.80

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Solution

The fourth proportional to 495,542.55, 743,313.84 and 215,059.80 is: 322,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,542.55 : 743,313.84 = 215,059.80 : x
  2. Step 2: Convert to fraction form
    495,542.55/743,313.84 = 215,059.80/x
  3. Step 3: Cross multiply
    495,542.55x = 743,313.84 × 215,059.80
  4. Step 4: Simplify right side
    495,542.55x = 159,856,925,767.63
  5. Step 5: Solve for x
    x = 159,856,925,767.63/495,542.55
  6. Step 6: Final answer
    x = 322,589.71

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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.