Home / 764,121.78-1,054,511.82-419,951.48

Finding the Fourth Proportional to 764,121.78, 1,054,511.82 and 419,951.48

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Solution

The fourth proportional to 764,121.78, 1,054,511.82 and 419,951.48 is: 579,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,121.78 : 1,054,511.82 = 419,951.48 : x
  2. Step 2: Convert to fraction form
    764,121.78/1,054,511.82 = 419,951.48/x
  3. Step 3: Cross multiply
    764,121.78x = 1,054,511.82 × 419,951.48
  4. Step 4: Simplify right side
    764,121.78x = 442,843,794,213.94
  5. Step 5: Solve for x
    x = 442,843,794,213.94/764,121.78
  6. Step 6: Final answer
    x = 579,546.10

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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.