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Finding the Third Proportional to 498,958 and 781,817

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Solution

The third proportional to 498,958 and 781,817 is: 1,225,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,958 : 781,817 = 781,817 : x
  2. Step 2: Convert to fraction form
    498,958/781,817 = 781,817/x
  3. Step 3: Cross multiply
    498,958x = 781,817 × 781,817
  4. Step 4: Simplify right side
    498,958x = 611,237,821,489
  5. Step 5: Solve for x
    x = 611,237,821,489/498,958
  6. Step 6: Final answer
    x = 1,225,028.60

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.