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Finding the Third Proportional to 622,218 and 1,329,728

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Solution

The third proportional to 622,218 and 1,329,728 is: 2,841,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,218 : 1,329,728 = 1,329,728 : x
  2. Step 2: Convert to fraction form
    622,218/1,329,728 = 1,329,728/x
  3. Step 3: Cross multiply
    622,218x = 1,329,728 × 1,329,728
  4. Step 4: Simplify right side
    622,218x = 1,768,176,553,984
  5. Step 5: Solve for x
    x = 1,768,176,553,984/622,218
  6. Step 6: Final answer
    x = 2,841,731.60

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.