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Finding the Third Proportional to 426,932 and 669,705

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Solution

The third proportional to 426,932 and 669,705 is: 1,050,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,932 : 669,705 = 669,705 : x
  2. Step 2: Convert to fraction form
    426,932/669,705 = 669,705/x
  3. Step 3: Cross multiply
    426,932x = 669,705 × 669,705
  4. Step 4: Simplify right side
    426,932x = 448,504,787,025
  5. Step 5: Solve for x
    x = 448,504,787,025/426,932
  6. Step 6: Final answer
    x = 1,050,529.80

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.