Home / 2,138,378.87-3,208,047.07-718,396.22

Finding the Fourth Proportional to 2,138,378.87, 3,208,047.07 and 718,396.22

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Solution

The fourth proportional to 2,138,378.87, 3,208,047.07 and 718,396.22 is: 1,077,755.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,378.87 : 3,208,047.07 = 718,396.22 : x
  2. Step 2: Convert to fraction form
    2,138,378.87/3,208,047.07 = 718,396.22/x
  3. Step 3: Cross multiply
    2,138,378.87x = 3,208,047.07 × 718,396.22
  4. Step 4: Simplify right side
    2,138,378.87x = 2,304,648,874,425.83
  5. Step 5: Solve for x
    x = 2,304,648,874,425.83/2,138,378.87
  6. Step 6: Final answer
    x = 1,077,755.17

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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.