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Finding the Third Proportional to 644,502 and 1,382,348

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Solution

The third proportional to 644,502 and 1,382,348 is: 2,964,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,502 : 1,382,348 = 1,382,348 : x
  2. Step 2: Convert to fraction form
    644,502/1,382,348 = 1,382,348/x
  3. Step 3: Cross multiply
    644,502x = 1,382,348 × 1,382,348
  4. Step 4: Simplify right side
    644,502x = 1,910,885,993,104
  5. Step 5: Solve for x
    x = 1,910,885,993,104/644,502
  6. Step 6: Final answer
    x = 2,964,903.12

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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.