Home / 855,974.80-1,283,959.16-256,933.36

Finding the Fourth Proportional to 855,974.80, 1,283,959.16 and 256,933.36

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Solution

The fourth proportional to 855,974.80, 1,283,959.16 and 256,933.36 is: 385,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,974.80 : 1,283,959.16 = 256,933.36 : x
  2. Step 2: Convert to fraction form
    855,974.80/1,283,959.16 = 256,933.36/x
  3. Step 3: Cross multiply
    855,974.80x = 1,283,959.16 × 256,933.36
  4. Step 4: Simplify right side
    855,974.80x = 329,891,941,081.58
  5. Step 5: Solve for x
    x = 329,891,941,081.58/855,974.80
  6. Step 6: Final answer
    x = 385,399.13

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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.