Home / 1,253,441.82-1,729,749.75-680,481.18

Finding the Fourth Proportional to 1,253,441.82, 1,729,749.75 and 680,481.18

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Solution

The fourth proportional to 1,253,441.82, 1,729,749.75 and 680,481.18 is: 939,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,441.82 : 1,729,749.75 = 680,481.18 : x
  2. Step 2: Convert to fraction form
    1,253,441.82/1,729,749.75 = 680,481.18/x
  3. Step 3: Cross multiply
    1,253,441.82x = 1,729,749.75 × 680,481.18
  4. Step 4: Simplify right side
    1,253,441.82x = 1,177,062,150,984.71
  5. Step 5: Solve for x
    x = 1,177,062,150,984.71/1,253,441.82
  6. Step 6: Final answer
    x = 939,064.05

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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.