Home / 2,179,616.80-3,007,684.56-1,212,748.96

Finding the Fourth Proportional to 2,179,616.80, 3,007,684.56 and 1,212,748.96

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Solution

The fourth proportional to 2,179,616.80, 3,007,684.56 and 1,212,748.96 is: 1,673,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,616.80 : 3,007,684.56 = 1,212,748.96 : x
  2. Step 2: Convert to fraction form
    2,179,616.80/3,007,684.56 = 1,212,748.96/x
  3. Step 3: Cross multiply
    2,179,616.80x = 3,007,684.56 × 1,212,748.96
  4. Step 4: Simplify right side
    2,179,616.80x = 3,647,566,322,148.06
  5. Step 5: Solve for x
    x = 3,647,566,322,148.06/2,179,616.80
  6. Step 6: Final answer
    x = 1,673,489.73

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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.