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Finding the Third Proportional to 518,000 and 800,008

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Solution

The third proportional to 518,000 and 800,008 is: 1,235,545.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,000 : 800,008 = 800,008 : x
  2. Step 2: Convert to fraction form
    518,000/800,008 = 800,008/x
  3. Step 3: Cross multiply
    518,000x = 800,008 × 800,008
  4. Step 4: Simplify right side
    518,000x = 640,012,800,064
  5. Step 5: Solve for x
    x = 640,012,800,064/518,000
  6. Step 6: Final answer
    x = 1,235,545.95

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.