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Finding the Third Proportional to 319,065 and 696,087

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Solution

The third proportional to 319,065 and 696,087 is: 1,518,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,065 : 696,087 = 696,087 : x
  2. Step 2: Convert to fraction form
    319,065/696,087 = 696,087/x
  3. Step 3: Cross multiply
    319,065x = 696,087 × 696,087
  4. Step 4: Simplify right side
    319,065x = 484,537,111,569
  5. Step 5: Solve for x
    x = 484,537,111,569/319,065
  6. Step 6: Final answer
    x = 1,518,615.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.