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Finding the Third Proportional to 328,815.75 and 683,468.25

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Solution

The third proportional to 328,815.75 and 683,468.25 is: 1,420,640.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,815.75 : 683,468.25 = 683,468.25 : x
  2. Step 2: Convert to fraction form
    328,815.75/683,468.25 = 683,468.25/x
  3. Step 3: Cross multiply
    328,815.75x = 683,468.25 × 683,468.25
  4. Step 4: Simplify right side
    328,815.75x = 467,128,848,758.06
  5. Step 5: Solve for x
    x = 467,128,848,758.06/328,815.75
  6. Step 6: Final answer
    x = 1,420,640.13

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.