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Finding the Third Proportional to 303,812 and 654,316

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Solution

The third proportional to 303,812 and 654,316 is: 1,409,191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,812 : 654,316 = 654,316 : x
  2. Step 2: Convert to fraction form
    303,812/654,316 = 654,316/x
  3. Step 3: Cross multiply
    303,812x = 654,316 × 654,316
  4. Step 4: Simplify right side
    303,812x = 428,129,427,856
  5. Step 5: Solve for x
    x = 428,129,427,856/303,812
  6. Step 6: Final answer
    x = 1,409,191.96

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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.