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Finding the Third Proportional to 504,506 and 781,191

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Solution

The third proportional to 504,506 and 781,191 is: 1,209,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,506 : 781,191 = 781,191 : x
  2. Step 2: Convert to fraction form
    504,506/781,191 = 781,191/x
  3. Step 3: Cross multiply
    504,506x = 781,191 × 781,191
  4. Step 4: Simplify right side
    504,506x = 610,259,378,481
  5. Step 5: Solve for x
    x = 610,259,378,481/504,506
  6. Step 6: Final answer
    x = 1,209,617.68

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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.