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Finding the Third Proportional to 987,178 and 1,492,917

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Solution

The third proportional to 987,178 and 1,492,917 is: 2,257,750.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,178 : 1,492,917 = 1,492,917 : x
  2. Step 2: Convert to fraction form
    987,178/1,492,917 = 1,492,917/x
  3. Step 3: Cross multiply
    987,178x = 1,492,917 × 1,492,917
  4. Step 4: Simplify right side
    987,178x = 2,228,801,168,889
  5. Step 5: Solve for x
    x = 2,228,801,168,889/987,178
  6. Step 6: Final answer
    x = 2,257,750.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.