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Finding the Third Proportional to 427,965 and 662,307

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Solution

The third proportional to 427,965 and 662,307 is: 1,024,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,965 : 662,307 = 662,307 : x
  2. Step 2: Convert to fraction form
    427,965/662,307 = 662,307/x
  3. Step 3: Cross multiply
    427,965x = 662,307 × 662,307
  4. Step 4: Simplify right side
    427,965x = 438,650,562,249
  5. Step 5: Solve for x
    x = 438,650,562,249/427,965
  6. Step 6: Final answer
    x = 1,024,968.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.