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Finding the Fourth Proportional to 518,018.25, 775,592.48 and 264,753.39

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Solution

The fourth proportional to 518,018.25, 775,592.48 and 264,753.39 is: 396,396.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,018.25 : 775,592.48 = 264,753.39 : x
  2. Step 2: Convert to fraction form
    518,018.25/775,592.48 = 264,753.39/x
  3. Step 3: Cross multiply
    518,018.25x = 775,592.48 × 264,753.39
  4. Step 4: Simplify right side
    518,018.25x = 205,340,741,908.86
  5. Step 5: Solve for x
    x = 205,340,741,908.86/518,018.25
  6. Step 6: Final answer
    x = 396,396.73

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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.