Home / 1,383,073.68-1,907,568.45-1,228,187.88

Finding the Fourth Proportional to 1,383,073.68, 1,907,568.45 and 1,228,187.88

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Solution

The fourth proportional to 1,383,073.68, 1,907,568.45 and 1,228,187.88 is: 1,693,946.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,073.68 : 1,907,568.45 = 1,228,187.88 : x
  2. Step 2: Convert to fraction form
    1,383,073.68/1,907,568.45 = 1,228,187.88/x
  3. Step 3: Cross multiply
    1,383,073.68x = 1,907,568.45 × 1,228,187.88
  4. Step 4: Simplify right side
    1,383,073.68x = 2,342,852,450,560.39
  5. Step 5: Solve for x
    x = 2,342,852,450,560.39/1,383,073.68
  6. Step 6: Final answer
    x = 1,693,946.23

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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.