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Finding the Fourth Proportional to 518,054.31, 775,646.60 and 264,789.41

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Solution

The fourth proportional to 518,054.31, 775,646.60 and 264,789.41 is: 396,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,054.31 : 775,646.60 = 264,789.41 : x
  2. Step 2: Convert to fraction form
    518,054.31/775,646.60 = 264,789.41/x
  3. Step 3: Cross multiply
    518,054.31x = 775,646.60 × 264,789.41
  4. Step 4: Simplify right side
    518,054.31x = 205,383,000,380.33
  5. Step 5: Solve for x
    x = 205,383,000,380.33/518,054.31
  6. Step 6: Final answer
    x = 396,450.71

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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.