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Finding the Third Proportional to 511,215 and 1,075,311

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Solution

The third proportional to 511,215 and 1,075,311 is: 2,261,854.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,215 : 1,075,311 = 1,075,311 : x
  2. Step 2: Convert to fraction form
    511,215/1,075,311 = 1,075,311/x
  3. Step 3: Cross multiply
    511,215x = 1,075,311 × 1,075,311
  4. Step 4: Simplify right side
    511,215x = 1,156,293,746,721
  5. Step 5: Solve for x
    x = 1,156,293,746,721/511,215
  6. Step 6: Final answer
    x = 2,261,854.11

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.