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Finding the Third Proportional to 282,664 and 618,456

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Solution

The third proportional to 282,664 and 618,456 is: 1,353,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,664 : 618,456 = 618,456 : x
  2. Step 2: Convert to fraction form
    282,664/618,456 = 618,456/x
  3. Step 3: Cross multiply
    282,664x = 618,456 × 618,456
  4. Step 4: Simplify right side
    282,664x = 382,487,823,936
  5. Step 5: Solve for x
    x = 382,487,823,936/282,664
  6. Step 6: Final answer
    x = 1,353,153.65

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.