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Finding the Third Proportional to 1,421,369 and 3,108,445

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Solution

The third proportional to 1,421,369 and 3,108,445 is: 6,797,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,369 : 3,108,445 = 3,108,445 : x
  2. Step 2: Convert to fraction form
    1,421,369/3,108,445 = 3,108,445/x
  3. Step 3: Cross multiply
    1,421,369x = 3,108,445 × 3,108,445
  4. Step 4: Simplify right side
    1,421,369x = 9,662,430,318,025
  5. Step 5: Solve for x
    x = 9,662,430,318,025/1,421,369
  6. Step 6: Final answer
    x = 6,797,974.57

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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.