Home / 1,338,021.78-1,846,483.86-726,179.83

Finding the Fourth Proportional to 1,338,021.78, 1,846,483.86 and 726,179.83

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Solution

The fourth proportional to 1,338,021.78, 1,846,483.86 and 726,179.83 is: 1,002,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,021.78 : 1,846,483.86 = 726,179.83 : x
  2. Step 2: Convert to fraction form
    1,338,021.78/1,846,483.86 = 726,179.83/x
  3. Step 3: Cross multiply
    1,338,021.78x = 1,846,483.86 × 726,179.83
  4. Step 4: Simplify right side
    1,338,021.78x = 1,340,879,335,552.54
  5. Step 5: Solve for x
    x = 1,340,879,335,552.54/1,338,021.78
  6. Step 6: Final answer
    x = 1,002,135.66

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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.