Home / 2,165,815.31-2,988,848.77-1,198,961.74

Finding the Fourth Proportional to 2,165,815.31, 2,988,848.77 and 1,198,961.74

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Solution

The fourth proportional to 2,165,815.31, 2,988,848.77 and 1,198,961.74 is: 1,654,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,815.31 : 2,988,848.77 = 1,198,961.74 : x
  2. Step 2: Convert to fraction form
    2,165,815.31/2,988,848.77 = 1,198,961.74/x
  3. Step 3: Cross multiply
    2,165,815.31x = 2,988,848.77 × 1,198,961.74
  4. Step 4: Simplify right side
    2,165,815.31x = 3,583,515,321,876.06
  5. Step 5: Solve for x
    x = 3,583,515,321,876.06/2,165,815.31
  6. Step 6: Final answer
    x = 1,654,580.29

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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.