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Finding the Third Proportional to 631,710 and 1,381,518

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Solution

The third proportional to 631,710 and 1,381,518 is: 3,021,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,710 : 1,381,518 = 1,381,518 : x
  2. Step 2: Convert to fraction form
    631,710/1,381,518 = 1,381,518/x
  3. Step 3: Cross multiply
    631,710x = 1,381,518 × 1,381,518
  4. Step 4: Simplify right side
    631,710x = 1,908,591,984,324
  5. Step 5: Solve for x
    x = 1,908,591,984,324/631,710
  6. Step 6: Final answer
    x = 3,021,310.39

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.