Home / 893,936.25-1,340,018.64-419,772.78

Finding the Fourth Proportional to 893,936.25, 1,340,018.64 and 419,772.78

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Solution

The fourth proportional to 893,936.25, 1,340,018.64 and 419,772.78 is: 629,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,936.25 : 1,340,018.64 = 419,772.78 : x
  2. Step 2: Convert to fraction form
    893,936.25/1,340,018.64 = 419,772.78/x
  3. Step 3: Cross multiply
    893,936.25x = 1,340,018.64 × 419,772.78
  4. Step 4: Simplify right side
    893,936.25x = 562,503,349,764.62
  5. Step 5: Solve for x
    x = 562,503,349,764.62/893,936.25
  6. Step 6: Final answer
    x = 629,243.25

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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.