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Finding the Third Proportional to 988,477 and 2,158,231

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Solution

The third proportional to 988,477 and 2,158,231 is: 4,712,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,477 : 2,158,231 = 2,158,231 : x
  2. Step 2: Convert to fraction form
    988,477/2,158,231 = 2,158,231/x
  3. Step 3: Cross multiply
    988,477x = 2,158,231 × 2,158,231
  4. Step 4: Simplify right side
    988,477x = 4,657,961,049,361
  5. Step 5: Solve for x
    x = 4,657,961,049,361/988,477
  6. Step 6: Final answer
    x = 4,712,260.43

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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.