Home / 855,901.80-1,284,065.94-256,874.04

Finding the Fourth Proportional to 855,901.80, 1,284,065.94 and 256,874.04

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Solution

The fourth proportional to 855,901.80, 1,284,065.94 and 256,874.04 is: 385,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,901.80 : 1,284,065.94 = 256,874.04 : x
  2. Step 2: Convert to fraction form
    855,901.80/1,284,065.94 = 256,874.04/x
  3. Step 3: Cross multiply
    855,901.80x = 1,284,065.94 × 256,874.04
  4. Step 4: Simplify right side
    855,901.80x = 329,843,205,634.20
  5. Step 5: Solve for x
    x = 329,843,205,634.20/855,901.80
  6. Step 6: Final answer
    x = 385,375.06

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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.