Home / 2,179,548.64-3,007,792-1,212,719.68

Finding the Fourth Proportional to 2,179,548.64, 3,007,792 and 1,212,719.68

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Solution

The fourth proportional to 2,179,548.64, 3,007,792 and 1,212,719.68 is: 1,673,561.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,548.64 : 3,007,792 = 1,212,719.68 : x
  2. Step 2: Convert to fraction form
    2,179,548.64/3,007,792 = 1,212,719.68/x
  3. Step 3: Cross multiply
    2,179,548.64x = 3,007,792 × 1,212,719.68
  4. Step 4: Simplify right side
    2,179,548.64x = 3,647,608,551,746.56
  5. Step 5: Solve for x
    x = 3,647,608,551,746.56/2,179,548.64
  6. Step 6: Final answer
    x = 1,673,561.44

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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.