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Finding the Fourth Proportional to 663,866.22, 995,799.93 and 284,540.79

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Solution

The fourth proportional to 663,866.22, 995,799.93 and 284,540.79 is: 426,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,866.22 : 995,799.93 = 284,540.79 : x
  2. Step 2: Convert to fraction form
    663,866.22/995,799.93 = 284,540.79/x
  3. Step 3: Cross multiply
    663,866.22x = 995,799.93 × 284,540.79
  4. Step 4: Simplify right side
    663,866.22x = 283,345,698,764.15
  5. Step 5: Solve for x
    x = 283,345,698,764.15/663,866.22
  6. Step 6: Final answer
    x = 426,811.44

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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.