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Finding the Fourth Proportional to 664,273.80, 995,730.30 and 326,795.40

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Solution

The fourth proportional to 664,273.80, 995,730.30 and 326,795.40 is: 489,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,273.80 : 995,730.30 = 326,795.40 : x
  2. Step 2: Convert to fraction form
    664,273.80/995,730.30 = 326,795.40/x
  3. Step 3: Cross multiply
    664,273.80x = 995,730.30 × 326,795.40
  4. Step 4: Simplify right side
    664,273.80x = 325,400,081,680.62
  5. Step 5: Solve for x
    x = 325,400,081,680.62/664,273.80
  6. Step 6: Final answer
    x = 489,858.37

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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.