Home / 744,481.14-1,027,566.45-422,379.78

Finding the Fourth Proportional to 744,481.14, 1,027,566.45 and 422,379.78

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Solution

The fourth proportional to 744,481.14, 1,027,566.45 and 422,379.78 is: 582,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,481.14 : 1,027,566.45 = 422,379.78 : x
  2. Step 2: Convert to fraction form
    744,481.14/1,027,566.45 = 422,379.78/x
  3. Step 3: Cross multiply
    744,481.14x = 1,027,566.45 × 422,379.78
  4. Step 4: Simplify right side
    744,481.14x = 434,023,291,086.38
  5. Step 5: Solve for x
    x = 434,023,291,086.38/744,481.14
  6. Step 6: Final answer
    x = 582,987.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.