Home / 839,878.07-1,259,821.80-208,791.86

Finding the Fourth Proportional to 839,878.07, 1,259,821.80 and 208,791.86

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Solution

The fourth proportional to 839,878.07, 1,259,821.80 and 208,791.86 is: 313,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,878.07 : 1,259,821.80 = 208,791.86 : x
  2. Step 2: Convert to fraction form
    839,878.07/1,259,821.80 = 208,791.86/x
  3. Step 3: Cross multiply
    839,878.07x = 1,259,821.80 × 208,791.86
  4. Step 4: Simplify right side
    839,878.07x = 263,040,530,591.44
  5. Step 5: Solve for x
    x = 263,040,530,591.44/839,878.07
  6. Step 6: Final answer
    x = 313,188.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.