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Finding the Third Proportional to 315,741.75 and 676,317

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Solution

The third proportional to 315,741.75 and 676,317 is: 1,448,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,741.75 : 676,317 = 676,317 : x
  2. Step 2: Convert to fraction form
    315,741.75/676,317 = 676,317/x
  3. Step 3: Cross multiply
    315,741.75x = 676,317 × 676,317
  4. Step 4: Simplify right side
    315,741.75x = 457,404,684,489
  5. Step 5: Solve for x
    x = 457,404,684,489/315,741.75
  6. Step 6: Final answer
    x = 1,448,667.10

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.