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Finding the Third Proportional to 319,716 and 700,344

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Solution

The third proportional to 319,716 and 700,344 is: 1,534,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,716 : 700,344 = 700,344 : x
  2. Step 2: Convert to fraction form
    319,716/700,344 = 700,344/x
  3. Step 3: Cross multiply
    319,716x = 700,344 × 700,344
  4. Step 4: Simplify right side
    319,716x = 490,481,718,336
  5. Step 5: Solve for x
    x = 490,481,718,336/319,716
  6. Step 6: Final answer
    x = 1,534,116.90

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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.