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Finding the Third Proportional to 554,115 and 1,211,909

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Solution

The third proportional to 554,115 and 1,211,909 is: 2,650,575.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,115 : 1,211,909 = 1,211,909 : x
  2. Step 2: Convert to fraction form
    554,115/1,211,909 = 1,211,909/x
  3. Step 3: Cross multiply
    554,115x = 1,211,909 × 1,211,909
  4. Step 4: Simplify right side
    554,115x = 1,468,723,424,281
  5. Step 5: Solve for x
    x = 1,468,723,424,281/554,115
  6. Step 6: Final answer
    x = 2,650,575.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.