Home / 1,253,076.31-1,729,247.03-680,116.53

Finding the Fourth Proportional to 1,253,076.31, 1,729,247.03 and 680,116.53

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Solution

The fourth proportional to 1,253,076.31, 1,729,247.03 and 680,116.53 is: 938,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,076.31 : 1,729,247.03 = 680,116.53 : x
  2. Step 2: Convert to fraction form
    1,253,076.31/1,729,247.03 = 680,116.53/x
  3. Step 3: Cross multiply
    1,253,076.31x = 1,729,247.03 × 680,116.53
  4. Step 4: Simplify right side
    1,253,076.31x = 1,176,089,495,190.94
  5. Step 5: Solve for x
    x = 1,176,089,495,190.94/1,253,076.31
  6. Step 6: Final answer
    x = 938,561.75

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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.