Home / 2,215,322.94-3,057,070.08-1,221,930.11

Finding the Fourth Proportional to 2,215,322.94, 3,057,070.08 and 1,221,930.11

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Solution

The fourth proportional to 2,215,322.94, 3,057,070.08 and 1,221,930.11 is: 1,686,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215,322.94 : 3,057,070.08 = 1,221,930.11 : x
  2. Step 2: Convert to fraction form
    2,215,322.94/3,057,070.08 = 1,221,930.11/x
  3. Step 3: Cross multiply
    2,215,322.94x = 3,057,070.08 × 1,221,930.11
  4. Step 4: Simplify right side
    2,215,322.94x = 3,735,525,979,132.11
  5. Step 5: Solve for x
    x = 3,735,525,979,132.11/2,215,322.94
  6. Step 6: Final answer
    x = 1,686,221.86

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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.