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Finding the Third Proportional to 621,210 and 1,323,764

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Solution

The third proportional to 621,210 and 1,323,764 is: 2,820,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,210 : 1,323,764 = 1,323,764 : x
  2. Step 2: Convert to fraction form
    621,210/1,323,764 = 1,323,764/x
  3. Step 3: Cross multiply
    621,210x = 1,323,764 × 1,323,764
  4. Step 4: Simplify right side
    621,210x = 1,752,351,127,696
  5. Step 5: Solve for x
    x = 1,752,351,127,696/621,210
  6. Step 6: Final answer
    x = 2,820,867.55

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.