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Finding the Third Proportional to 603,639 and 1,279,239

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Solution

The third proportional to 603,639 and 1,279,239 is: 2,710,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,639 : 1,279,239 = 1,279,239 : x
  2. Step 2: Convert to fraction form
    603,639/1,279,239 = 1,279,239/x
  3. Step 3: Cross multiply
    603,639x = 1,279,239 × 1,279,239
  4. Step 4: Simplify right side
    603,639x = 1,636,452,419,121
  5. Step 5: Solve for x
    x = 1,636,452,419,121/603,639
  6. Step 6: Final answer
    x = 2,710,978.61

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.