Home / 1,253,081.37-1,729,254.02-680,121.60

Finding the Fourth Proportional to 1,253,081.37, 1,729,254.02 and 680,121.60

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Solution

The fourth proportional to 1,253,081.37, 1,729,254.02 and 680,121.60 is: 938,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,081.37 : 1,729,254.02 = 680,121.60 : x
  2. Step 2: Convert to fraction form
    1,253,081.37/1,729,254.02 = 680,121.60/x
  3. Step 3: Cross multiply
    1,253,081.37x = 1,729,254.02 × 680,121.60
  4. Step 4: Simplify right side
    1,253,081.37x = 1,176,103,001,003.52
  5. Step 5: Solve for x
    x = 1,176,103,001,003.52/1,253,081.37
  6. Step 6: Final answer
    x = 938,568.74

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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.