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Finding the Third Proportional to 297,116 and 648,664

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Solution

The third proportional to 297,116 and 648,664 is: 1,416,164.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,116 : 648,664 = 648,664 : x
  2. Step 2: Convert to fraction form
    297,116/648,664 = 648,664/x
  3. Step 3: Cross multiply
    297,116x = 648,664 × 648,664
  4. Step 4: Simplify right side
    297,116x = 420,764,984,896
  5. Step 5: Solve for x
    x = 420,764,984,896/297,116
  6. Step 6: Final answer
    x = 1,416,164.01

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.