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Finding the Fourth Proportional to 495,776, 743,531.04 and 215,226.56

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Solution

The fourth proportional to 495,776, 743,531.04 and 215,226.56 is: 322,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,776 : 743,531.04 = 215,226.56 : x
  2. Step 2: Convert to fraction form
    495,776/743,531.04 = 215,226.56/x
  3. Step 3: Cross multiply
    495,776x = 743,531.04 × 215,226.56
  4. Step 4: Simplify right side
    495,776x = 160,027,627,992.42
  5. Step 5: Solve for x
    x = 160,027,627,992.42/495,776
  6. Step 6: Final answer
    x = 322,782.12

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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.