Home / 1,383,236.94-1,908,780.57-763,049.28

Finding the Fourth Proportional to 1,383,236.94, 1,908,780.57 and 763,049.28

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Solution

The fourth proportional to 1,383,236.94, 1,908,780.57 and 763,049.28 is: 1,052,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,236.94 : 1,908,780.57 = 763,049.28 : x
  2. Step 2: Convert to fraction form
    1,383,236.94/1,908,780.57 = 763,049.28/x
  3. Step 3: Cross multiply
    1,383,236.94x = 1,908,780.57 × 763,049.28
  4. Step 4: Simplify right side
    1,383,236.94x = 1,456,493,644,559.09
  5. Step 5: Solve for x
    x = 1,456,493,644,559.09/1,383,236.94
  6. Step 6: Final answer
    x = 1,052,960.34

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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.