Home / 438,945.32-605,793.78-247,971.02

Finding the Fourth Proportional to 438,945.32, 605,793.78 and 247,971.02

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Solution

The fourth proportional to 438,945.32, 605,793.78 and 247,971.02 is: 342,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,945.32 : 605,793.78 = 247,971.02 : x
  2. Step 2: Convert to fraction form
    438,945.32/605,793.78 = 247,971.02/x
  3. Step 3: Cross multiply
    438,945.32x = 605,793.78 × 247,971.02
  4. Step 4: Simplify right side
    438,945.32x = 150,219,298,507.29
  5. Step 5: Solve for x
    x = 150,219,298,507.29/438,945.32
  6. Step 6: Final answer
    x = 342,227.81

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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.