Home / 1,253,110.55-1,729,295.89-680,150.72

Finding the Fourth Proportional to 1,253,110.55, 1,729,295.89 and 680,150.72

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Solution

The fourth proportional to 1,253,110.55, 1,729,295.89 and 680,150.72 is: 938,609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,110.55 : 1,729,295.89 = 680,150.72 : x
  2. Step 2: Convert to fraction form
    1,253,110.55/1,729,295.89 = 680,150.72/x
  3. Step 3: Cross multiply
    1,253,110.55x = 1,729,295.89 × 680,150.72
  4. Step 4: Simplify right side
    1,253,110.55x = 1,176,181,847,299.40
  5. Step 5: Solve for x
    x = 1,176,181,847,299.40/1,253,110.55
  6. Step 6: Final answer
    x = 938,609.81

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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.