Home / 1,253,110.20-1,729,245.72-680,138.08

Finding the Fourth Proportional to 1,253,110.20, 1,729,245.72 and 680,138.08

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Solution

The fourth proportional to 1,253,110.20, 1,729,245.72 and 680,138.08 is: 938,565.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,110.20 : 1,729,245.72 = 680,138.08 : x
  2. Step 2: Convert to fraction form
    1,253,110.20/1,729,245.72 = 680,138.08/x
  3. Step 3: Cross multiply
    1,253,110.20x = 1,729,245.72 × 680,138.08
  4. Step 4: Simplify right side
    1,253,110.20x = 1,176,125,863,849.02
  5. Step 5: Solve for x
    x = 1,176,125,863,849.02/1,253,110.20
  6. Step 6: Final answer
    x = 938,565.39

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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.