Home / 3,111,198-4,293,456.12-1,680,414

Finding the Fourth Proportional to 3,111,198, 4,293,456.12 and 1,680,414

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Solution

The fourth proportional to 3,111,198, 4,293,456.12 and 1,680,414 is: 2,318,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,198 : 4,293,456.12 = 1,680,414 : x
  2. Step 2: Convert to fraction form
    3,111,198/4,293,456.12 = 1,680,414/x
  3. Step 3: Cross multiply
    3,111,198x = 4,293,456.12 × 1,680,414
  4. Step 4: Simplify right side
    3,111,198x = 7,214,783,772,433.68
  5. Step 5: Solve for x
    x = 7,214,783,772,433.68/3,111,198
  6. Step 6: Final answer
    x = 2,318,972.88

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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.