Home / 681,929.26-1,022,934.86-208,618.72

Finding the Fourth Proportional to 681,929.26, 1,022,934.86 and 208,618.72

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Solution

The fourth proportional to 681,929.26, 1,022,934.86 and 208,618.72 is: 312,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,929.26 : 1,022,934.86 = 208,618.72 : x
  2. Step 2: Convert to fraction form
    681,929.26/1,022,934.86 = 208,618.72/x
  3. Step 3: Cross multiply
    681,929.26x = 1,022,934.86 × 208,618.72
  4. Step 4: Simplify right side
    681,929.26x = 213,403,361,136.58
  5. Step 5: Solve for x
    x = 213,403,361,136.58/681,929.26
  6. Step 6: Final answer
    x = 312,940.61

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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.