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Finding the Third Proportional to 351,372 and 685,080

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Solution

The third proportional to 351,372 and 685,080 is: 1,335,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,372 : 685,080 = 685,080 : x
  2. Step 2: Convert to fraction form
    351,372/685,080 = 685,080/x
  3. Step 3: Cross multiply
    351,372x = 685,080 × 685,080
  4. Step 4: Simplify right side
    351,372x = 469,334,606,400
  5. Step 5: Solve for x
    x = 469,334,606,400/351,372
  6. Step 6: Final answer
    x = 1,335,720.00

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.