Home / 2,188,252.17-3,019,940.15-1,221,571.17

Finding the Fourth Proportional to 2,188,252.17, 3,019,940.15 and 1,221,571.17

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Solution

The fourth proportional to 2,188,252.17, 3,019,940.15 and 1,221,571.17 is: 1,685,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,252.17 : 3,019,940.15 = 1,221,571.17 : x
  2. Step 2: Convert to fraction form
    2,188,252.17/3,019,940.15 = 1,221,571.17/x
  3. Step 3: Cross multiply
    2,188,252.17x = 3,019,940.15 × 1,221,571.17
  4. Step 4: Simplify right side
    2,188,252.17x = 3,689,071,816,257.62
  5. Step 5: Solve for x
    x = 3,689,071,816,257.62/2,188,252.17
  6. Step 6: Final answer
    x = 1,685,853.15

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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.