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Finding the Third Proportional to 449,193.75 and 660,645

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Solution

The third proportional to 449,193.75 and 660,645 is: 971,633.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,193.75 : 660,645 = 660,645 : x
  2. Step 2: Convert to fraction form
    449,193.75/660,645 = 660,645/x
  3. Step 3: Cross multiply
    449,193.75x = 660,645 × 660,645
  4. Step 4: Simplify right side
    449,193.75x = 436,451,816,025
  5. Step 5: Solve for x
    x = 436,451,816,025/449,193.75
  6. Step 6: Final answer
    x = 971,633.77

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.