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Finding the Third Proportional to 408,994 and 837,820

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Solution

The third proportional to 408,994 and 837,820 is: 1,716,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,994 : 837,820 = 837,820 : x
  2. Step 2: Convert to fraction form
    408,994/837,820 = 837,820/x
  3. Step 3: Cross multiply
    408,994x = 837,820 × 837,820
  4. Step 4: Simplify right side
    408,994x = 701,942,352,400
  5. Step 5: Solve for x
    x = 701,942,352,400/408,994
  6. Step 6: Final answer
    x = 1,716,265.65

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.