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Finding the Third Proportional to 637,239 and 1,330,247

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Solution

The third proportional to 637,239 and 1,330,247 is: 2,776,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,239 : 1,330,247 = 1,330,247 : x
  2. Step 2: Convert to fraction form
    637,239/1,330,247 = 1,330,247/x
  3. Step 3: Cross multiply
    637,239x = 1,330,247 × 1,330,247
  4. Step 4: Simplify right side
    637,239x = 1,769,557,081,009
  5. Step 5: Solve for x
    x = 1,769,557,081,009/637,239
  6. Step 6: Final answer
    x = 2,776,912.71

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.