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Finding the Third Proportional to 330,822 and 700,470

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Solution

The third proportional to 330,822 and 700,470 is: 1,483,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,822 : 700,470 = 700,470 : x
  2. Step 2: Convert to fraction form
    330,822/700,470 = 700,470/x
  3. Step 3: Cross multiply
    330,822x = 700,470 × 700,470
  4. Step 4: Simplify right side
    330,822x = 490,658,220,900
  5. Step 5: Solve for x
    x = 490,658,220,900/330,822
  6. Step 6: Final answer
    x = 1,483,148.71

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.