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Finding the Third Proportional to 308,607.48 and 662,717.25

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Solution

The third proportional to 308,607.48 and 662,717.25 is: 1,423,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,607.48 : 662,717.25 = 662,717.25 : x
  2. Step 2: Convert to fraction form
    308,607.48/662,717.25 = 662,717.25/x
  3. Step 3: Cross multiply
    308,607.48x = 662,717.25 × 662,717.25
  4. Step 4: Simplify right side
    308,607.48x = 439,194,153,447.56
  5. Step 5: Solve for x
    x = 439,194,153,447.56/308,607.48
  6. Step 6: Final answer
    x = 1,423,148.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.