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Finding the Third Proportional to 989,440 and 2,168,252

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Solution

The third proportional to 989,440 and 2,168,252 is: 4,751,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,440 : 2,168,252 = 2,168,252 : x
  2. Step 2: Convert to fraction form
    989,440/2,168,252 = 2,168,252/x
  3. Step 3: Cross multiply
    989,440x = 2,168,252 × 2,168,252
  4. Step 4: Simplify right side
    989,440x = 4,701,316,735,504
  5. Step 5: Solve for x
    x = 4,701,316,735,504/989,440
  6. Step 6: Final answer
    x = 4,751,492.50

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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.