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Finding the Third Proportional to 360,808 and 778,816

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Solution

The third proportional to 360,808 and 778,816 is: 1,681,100.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,808 : 778,816 = 778,816 : x
  2. Step 2: Convert to fraction form
    360,808/778,816 = 778,816/x
  3. Step 3: Cross multiply
    360,808x = 778,816 × 778,816
  4. Step 4: Simplify right side
    360,808x = 606,554,361,856
  5. Step 5: Solve for x
    x = 606,554,361,856/360,808
  6. Step 6: Final answer
    x = 1,681,100.09

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.