Home / 825,333.82-1,237,843.09-256,721.79

Finding the Fourth Proportional to 825,333.82, 1,237,843.09 and 256,721.79

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Solution

The fourth proportional to 825,333.82, 1,237,843.09 and 256,721.79 is: 385,033.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,333.82 : 1,237,843.09 = 256,721.79 : x
  2. Step 2: Convert to fraction form
    825,333.82/1,237,843.09 = 256,721.79/x
  3. Step 3: Cross multiply
    825,333.82x = 1,237,843.09 × 256,721.79
  4. Step 4: Simplify right side
    825,333.82x = 317,781,293,803.93
  5. Step 5: Solve for x
    x = 317,781,293,803.93/825,333.82
  6. Step 6: Final answer
    x = 385,033.65

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Double scale
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1.5x scale

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.