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Finding the Third Proportional to 497,115 and 777,663

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Solution

The third proportional to 497,115 and 777,663 is: 1,216,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,115 : 777,663 = 777,663 : x
  2. Step 2: Convert to fraction form
    497,115/777,663 = 777,663/x
  3. Step 3: Cross multiply
    497,115x = 777,663 × 777,663
  4. Step 4: Simplify right side
    497,115x = 604,759,741,569
  5. Step 5: Solve for x
    x = 604,759,741,569/497,115
  6. Step 6: Final answer
    x = 1,216,538.91

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.