Home / 744,231.16-1,027,115.13-438,403.78

Finding the Fourth Proportional to 744,231.16, 1,027,115.13 and 438,403.78

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Solution

The fourth proportional to 744,231.16, 1,027,115.13 and 438,403.78 is: 605,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,231.16 : 1,027,115.13 = 438,403.78 : x
  2. Step 2: Convert to fraction form
    744,231.16/1,027,115.13 = 438,403.78/x
  3. Step 3: Cross multiply
    744,231.16x = 1,027,115.13 × 438,403.78
  4. Step 4: Simplify right side
    744,231.16x = 450,291,155,487.19
  5. Step 5: Solve for x
    x = 450,291,155,487.19/744,231.16
  6. Step 6: Final answer
    x = 605,042.06

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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.