Home / 855,985.82-1,283,975.64-256,944.38

Finding the Fourth Proportional to 855,985.82, 1,283,975.64 and 256,944.38

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Solution

The fourth proportional to 855,985.82, 1,283,975.64 and 256,944.38 is: 385,415.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,985.82 : 1,283,975.64 = 256,944.38 : x
  2. Step 2: Convert to fraction form
    855,985.82/1,283,975.64 = 256,944.38/x
  3. Step 3: Cross multiply
    855,985.82x = 1,283,975.64 × 256,944.38
  4. Step 4: Simplify right side
    855,985.82x = 329,910,324,754.90
  5. Step 5: Solve for x
    x = 329,910,324,754.90/855,985.82
  6. Step 6: Final answer
    x = 385,415.64

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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.