Home / 2,145,042.78-2,960,183.39-1,178,195.73

Finding the Fourth Proportional to 2,145,042.78, 2,960,183.39 and 1,178,195.73

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Solution

The fourth proportional to 2,145,042.78, 2,960,183.39 and 1,178,195.73 is: 1,625,923.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,042.78 : 2,960,183.39 = 1,178,195.73 : x
  2. Step 2: Convert to fraction form
    2,145,042.78/2,960,183.39 = 1,178,195.73/x
  3. Step 3: Cross multiply
    2,145,042.78x = 2,960,183.39 × 1,178,195.73
  4. Step 4: Simplify right side
    2,145,042.78x = 3,487,675,424,223.95
  5. Step 5: Solve for x
    x = 3,487,675,424,223.95/2,145,042.78
  6. Step 6: Final answer
    x = 1,625,923.48

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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.