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Finding the Third Proportional to 720,072 and 1,555,668

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Solution

The third proportional to 720,072 and 1,555,668 is: 3,360,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,072 : 1,555,668 = 1,555,668 : x
  2. Step 2: Convert to fraction form
    720,072/1,555,668 = 1,555,668/x
  3. Step 3: Cross multiply
    720,072x = 1,555,668 × 1,555,668
  4. Step 4: Simplify right side
    720,072x = 2,420,102,926,224
  5. Step 5: Solve for x
    x = 2,420,102,926,224/720,072
  6. Step 6: Final answer
    x = 3,360,917.97

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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.