Home / 855,983.82-1,283,972.64-256,942.38

Finding the Fourth Proportional to 855,983.82, 1,283,972.64 and 256,942.38

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Solution

The fourth proportional to 855,983.82, 1,283,972.64 and 256,942.38 is: 385,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,983.82 : 1,283,972.64 = 256,942.38 : x
  2. Step 2: Convert to fraction form
    855,983.82/1,283,972.64 = 256,942.38/x
  3. Step 3: Cross multiply
    855,983.82x = 1,283,972.64 × 256,942.38
  4. Step 4: Simplify right side
    855,983.82x = 329,906,985,976.48
  5. Step 5: Solve for x
    x = 329,906,985,976.48/855,983.82
  6. Step 6: Final answer
    x = 385,412.64

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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.