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Finding the Third Proportional to 989,883 and 2,157,480

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Solution

The third proportional to 989,883 and 2,157,480 is: 4,702,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,883 : 2,157,480 = 2,157,480 : x
  2. Step 2: Convert to fraction form
    989,883/2,157,480 = 2,157,480/x
  3. Step 3: Cross multiply
    989,883x = 2,157,480 × 2,157,480
  4. Step 4: Simplify right side
    989,883x = 4,654,719,950,400
  5. Step 5: Solve for x
    x = 4,654,719,950,400/989,883
  6. Step 6: Final answer
    x = 4,702,293.05

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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.