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Finding the Third Proportional to 288,785.25 and 625,684.50

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Solution

The third proportional to 288,785.25 and 625,684.50 is: 1,355,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,785.25 : 625,684.50 = 625,684.50 : x
  2. Step 2: Convert to fraction form
    288,785.25/625,684.50 = 625,684.50/x
  3. Step 3: Cross multiply
    288,785.25x = 625,684.50 × 625,684.50
  4. Step 4: Simplify right side
    288,785.25x = 391,481,093,540.25
  5. Step 5: Solve for x
    x = 391,481,093,540.25/288,785.25
  6. Step 6: Final answer
    x = 1,355,613.19

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.