Home / 1,253,142.76-1,729,290.48-680,170.60

Finding the Fourth Proportional to 1,253,142.76, 1,729,290.48 and 680,170.60

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Solution

The fourth proportional to 1,253,142.76, 1,729,290.48 and 680,170.60 is: 938,610.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,142.76 : 1,729,290.48 = 680,170.60 : x
  2. Step 2: Convert to fraction form
    1,253,142.76/1,729,290.48 = 680,170.60/x
  3. Step 3: Cross multiply
    1,253,142.76x = 1,729,290.48 × 680,170.60
  4. Step 4: Simplify right side
    1,253,142.76x = 1,176,212,543,355.89
  5. Step 5: Solve for x
    x = 1,176,212,543,355.89/1,253,142.76
  6. Step 6: Final answer
    x = 938,610.17

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Double scale
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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.