Home / 855,238-1,282,856.97-393,569.36

Finding the Fourth Proportional to 855,238, 1,282,856.97 and 393,569.36

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Solution

The fourth proportional to 855,238, 1,282,856.97 and 393,569.36 is: 590,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,238 : 1,282,856.97 = 393,569.36 : x
  2. Step 2: Convert to fraction form
    855,238/1,282,856.97 = 393,569.36/x
  3. Step 3: Cross multiply
    855,238x = 1,282,856.97 × 393,569.36
  4. Step 4: Simplify right side
    855,238x = 504,893,196,654.44
  5. Step 5: Solve for x
    x = 504,893,196,654.44/855,238
  6. Step 6: Final answer
    x = 590,354.03

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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.