Home / 2,125,918.56-3,188,864.24-778,175.04

Finding the Fourth Proportional to 2,125,918.56, 3,188,864.24 and 778,175.04

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Solution

The fourth proportional to 2,125,918.56, 3,188,864.24 and 778,175.04 is: 1,167,257.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125,918.56 : 3,188,864.24 = 778,175.04 : x
  2. Step 2: Convert to fraction form
    2,125,918.56/3,188,864.24 = 778,175.04/x
  3. Step 3: Cross multiply
    2,125,918.56x = 3,188,864.24 × 778,175.04
  4. Step 4: Simplify right side
    2,125,918.56x = 2,481,494,557,516.57
  5. Step 5: Solve for x
    x = 2,481,494,557,516.57/2,125,918.56
  6. Step 6: Final answer
    x = 1,167,257.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.