Home / 2,179,228.61-3,007,375.86-1,212,448.85

Finding the Fourth Proportional to 2,179,228.61, 3,007,375.86 and 1,212,448.85

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Solution

The fourth proportional to 2,179,228.61, 3,007,375.86 and 1,212,448.85 is: 1,673,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,228.61 : 3,007,375.86 = 1,212,448.85 : x
  2. Step 2: Convert to fraction form
    2,179,228.61/3,007,375.86 = 1,212,448.85/x
  3. Step 3: Cross multiply
    2,179,228.61x = 3,007,375.86 × 1,212,448.85
  4. Step 4: Simplify right side
    2,179,228.61x = 3,646,289,402,974.76
  5. Step 5: Solve for x
    x = 3,646,289,402,974.76/2,179,228.61
  6. Step 6: Final answer
    x = 1,673,201.88

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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.