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Finding the Third Proportional to 890,508 and 2,100,072

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Solution

The third proportional to 890,508 and 2,100,072 is: 4,952,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,508 : 2,100,072 = 2,100,072 : x
  2. Step 2: Convert to fraction form
    890,508/2,100,072 = 2,100,072/x
  3. Step 3: Cross multiply
    890,508x = 2,100,072 × 2,100,072
  4. Step 4: Simplify right side
    890,508x = 4,410,302,405,184
  5. Step 5: Solve for x
    x = 4,410,302,405,184/890,508
  6. Step 6: Final answer
    x = 4,952,569.10

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.