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Finding the Third Proportional to 482,863 and 764,421

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Solution

The third proportional to 482,863 and 764,421 is: 1,210,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,863 : 764,421 = 764,421 : x
  2. Step 2: Convert to fraction form
    482,863/764,421 = 764,421/x
  3. Step 3: Cross multiply
    482,863x = 764,421 × 764,421
  4. Step 4: Simplify right side
    482,863x = 584,339,465,241
  5. Step 5: Solve for x
    x = 584,339,465,241/482,863
  6. Step 6: Final answer
    x = 1,210,155.81

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.