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Finding the Third Proportional to 720,620 and 1,668,062

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Solution

The third proportional to 720,620 and 1,668,062 is: 3,861,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,620 : 1,668,062 = 1,668,062 : x
  2. Step 2: Convert to fraction form
    720,620/1,668,062 = 1,668,062/x
  3. Step 3: Cross multiply
    720,620x = 1,668,062 × 1,668,062
  4. Step 4: Simplify right side
    720,620x = 2,782,430,835,844
  5. Step 5: Solve for x
    x = 2,782,430,835,844/720,620
  6. Step 6: Final answer
    x = 3,861,162.38

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.