Home / 839,905.57-1,259,863.14-208,819.38

Finding the Fourth Proportional to 839,905.57, 1,259,863.14 and 208,819.38

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Solution

The fourth proportional to 839,905.57, 1,259,863.14 and 208,819.38 is: 313,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,905.57 : 1,259,863.14 = 208,819.38 : x
  2. Step 2: Convert to fraction form
    839,905.57/1,259,863.14 = 208,819.38/x
  3. Step 3: Cross multiply
    839,905.57x = 1,259,863.14 × 208,819.38
  4. Step 4: Simplify right side
    839,905.57x = 263,083,839,779.65
  5. Step 5: Solve for x
    x = 263,083,839,779.65/839,905.57
  6. Step 6: Final answer
    x = 313,230.26

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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.