Home / 408,733.56-612,824.94-208,890.36

Finding the Fourth Proportional to 408,733.56, 612,824.94 and 208,890.36

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Solution

The fourth proportional to 408,733.56, 612,824.94 and 208,890.36 is: 313,194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,733.56 : 612,824.94 = 208,890.36 : x
  2. Step 2: Convert to fraction form
    408,733.56/612,824.94 = 208,890.36/x
  3. Step 3: Cross multiply
    408,733.56x = 612,824.94 × 208,890.36
  4. Step 4: Simplify right side
    408,733.56x = 128,013,222,333.58
  5. Step 5: Solve for x
    x = 128,013,222,333.58/408,733.56
  6. Step 6: Final answer
    x = 313,194.79

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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.