Home / 839,958.71-1,259,943.09-208,872.52

Finding the Fourth Proportional to 839,958.71, 1,259,943.09 and 208,872.52

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Solution

The fourth proportional to 839,958.71, 1,259,943.09 and 208,872.52 is: 313,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,958.71 : 1,259,943.09 = 208,872.52 : x
  2. Step 2: Convert to fraction form
    839,958.71/1,259,943.09 = 208,872.52/x
  3. Step 3: Cross multiply
    839,958.71x = 1,259,943.09 × 208,872.52
  4. Step 4: Simplify right side
    839,958.71x = 263,167,491,418.94
  5. Step 5: Solve for x
    x = 263,167,491,418.94/839,958.71
  6. Step 6: Final answer
    x = 313,310.03

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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.