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Finding the Third Proportional to 790,218 and 1,255,311

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Solution

The third proportional to 790,218 and 1,255,311 is: 1,994,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,218 : 1,255,311 = 1,255,311 : x
  2. Step 2: Convert to fraction form
    790,218/1,255,311 = 1,255,311/x
  3. Step 3: Cross multiply
    790,218x = 1,255,311 × 1,255,311
  4. Step 4: Simplify right side
    790,218x = 1,575,805,706,721
  5. Step 5: Solve for x
    x = 1,575,805,706,721/790,218
  6. Step 6: Final answer
    x = 1,994,140.49

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.