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Finding the Third Proportional to 500,638 and 775,258

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Solution

The third proportional to 500,638 and 775,258 is: 1,200,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,638 : 775,258 = 775,258 : x
  2. Step 2: Convert to fraction form
    500,638/775,258 = 775,258/x
  3. Step 3: Cross multiply
    500,638x = 775,258 × 775,258
  4. Step 4: Simplify right side
    500,638x = 601,024,966,564
  5. Step 5: Solve for x
    x = 601,024,966,564/500,638
  6. Step 6: Final answer
    x = 1,200,518.07

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.