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Finding the Third Proportional to 297,824 and 642,301

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Solution

The third proportional to 297,824 and 642,301 is: 1,385,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,824 : 642,301 = 642,301 : x
  2. Step 2: Convert to fraction form
    297,824/642,301 = 642,301/x
  3. Step 3: Cross multiply
    297,824x = 642,301 × 642,301
  4. Step 4: Simplify right side
    297,824x = 412,550,574,601
  5. Step 5: Solve for x
    x = 412,550,574,601/297,824
  6. Step 6: Final answer
    x = 1,385,216.02

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.