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Finding the Third Proportional to 319,777 and 692,546

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Solution

The third proportional to 319,777 and 692,546 is: 1,499,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,777 : 692,546 = 692,546 : x
  2. Step 2: Convert to fraction form
    319,777/692,546 = 692,546/x
  3. Step 3: Cross multiply
    319,777x = 692,546 × 692,546
  4. Step 4: Simplify right side
    319,777x = 479,619,962,116
  5. Step 5: Solve for x
    x = 479,619,962,116/319,777
  6. Step 6: Final answer
    x = 1,499,857.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.