Home / 1,253,076.20-1,729,246.74-680,116.40

Finding the Fourth Proportional to 1,253,076.20, 1,729,246.74 and 680,116.40

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Solution

The fourth proportional to 1,253,076.20, 1,729,246.74 and 680,116.40 is: 938,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,076.20 : 1,729,246.74 = 680,116.40 : x
  2. Step 2: Convert to fraction form
    1,253,076.20/1,729,246.74 = 680,116.40/x
  3. Step 3: Cross multiply
    1,253,076.20x = 1,729,246.74 × 680,116.40
  4. Step 4: Simplify right side
    1,253,076.20x = 1,176,089,067,520.54
  5. Step 5: Solve for x
    x = 1,176,089,067,520.54/1,253,076.20
  6. Step 6: Final answer
    x = 938,561.49

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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.