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Finding the Third Proportional to 443,880 and 628,080

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Solution

The third proportional to 443,880 and 628,080 is: 888,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,880 : 628,080 = 628,080 : x
  2. Step 2: Convert to fraction form
    443,880/628,080 = 628,080/x
  3. Step 3: Cross multiply
    443,880x = 628,080 × 628,080
  4. Step 4: Simplify right side
    443,880x = 394,484,486,400
  5. Step 5: Solve for x
    x = 394,484,486,400/443,880
  6. Step 6: Final answer
    x = 888,718.77

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.