Home / 865,940.22-1,194,221.07-721,226.43

Finding the Fourth Proportional to 865,940.22, 1,194,221.07 and 721,226.43

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Solution

The fourth proportional to 865,940.22, 1,194,221.07 and 721,226.43 is: 994,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,940.22 : 1,194,221.07 = 721,226.43 : x
  2. Step 2: Convert to fraction form
    865,940.22/1,194,221.07 = 721,226.43/x
  3. Step 3: Cross multiply
    865,940.22x = 1,194,221.07 × 721,226.43
  4. Step 4: Simplify right side
    865,940.22x = 861,303,798,946.88
  5. Step 5: Solve for x
    x = 861,303,798,946.88/865,940.22
  6. Step 6: Final answer
    x = 994,645.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.