Home / 1,916,308.82-2,643,838.35-1,228,359.94

Finding the Fourth Proportional to 1,916,308.82, 2,643,838.35 and 1,228,359.94

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Solution

The fourth proportional to 1,916,308.82, 2,643,838.35 and 1,228,359.94 is: 1,694,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,308.82 : 2,643,838.35 = 1,228,359.94 : x
  2. Step 2: Convert to fraction form
    1,916,308.82/2,643,838.35 = 1,228,359.94/x
  3. Step 3: Cross multiply
    1,916,308.82x = 2,643,838.35 × 1,228,359.94
  4. Step 4: Simplify right side
    1,916,308.82x = 3,247,585,105,759.75
  5. Step 5: Solve for x
    x = 3,247,585,105,759.75/1,916,308.82
  6. Step 6: Final answer
    x = 1,694,708.63

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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.