Home / 2,165,812.56-2,988,785.52-1,198,922.40

Finding the Fourth Proportional to 2,165,812.56, 2,988,785.52 and 1,198,922.40

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Solution

The fourth proportional to 2,165,812.56, 2,988,785.52 and 1,198,922.40 is: 1,654,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,812.56 : 2,988,785.52 = 1,198,922.40 : x
  2. Step 2: Convert to fraction form
    2,165,812.56/2,988,785.52 = 1,198,922.40/x
  3. Step 3: Cross multiply
    2,165,812.56x = 2,988,785.52 × 1,198,922.40
  4. Step 4: Simplify right side
    2,165,812.56x = 3,583,321,908,723.65
  5. Step 5: Solve for x
    x = 3,583,321,908,723.65/2,165,812.56
  6. Step 6: Final answer
    x = 1,654,493.09

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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.