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Finding the Third Proportional to 989,098 and 2,155,338

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Solution

The third proportional to 989,098 and 2,155,338 is: 4,696,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,098 : 2,155,338 = 2,155,338 : x
  2. Step 2: Convert to fraction form
    989,098/2,155,338 = 2,155,338/x
  3. Step 3: Cross multiply
    989,098x = 2,155,338 × 2,155,338
  4. Step 4: Simplify right side
    989,098x = 4,645,481,894,244
  5. Step 5: Solve for x
    x = 4,645,481,894,244/989,098
  6. Step 6: Final answer
    x = 4,696,685.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.