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Finding the Third Proportional to 631,332 and 1,387,080

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Solution

The third proportional to 631,332 and 1,387,080 is: 3,047,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,332 : 1,387,080 = 1,387,080 : x
  2. Step 2: Convert to fraction form
    631,332/1,387,080 = 1,387,080/x
  3. Step 3: Cross multiply
    631,332x = 1,387,080 × 1,387,080
  4. Step 4: Simplify right side
    631,332x = 1,923,990,926,400
  5. Step 5: Solve for x
    x = 1,923,990,926,400/631,332
  6. Step 6: Final answer
    x = 3,047,510.54

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.