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Finding the Third Proportional to 988,865 and 2,099,129

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Solution

The third proportional to 988,865 and 2,099,129 is: 4,455,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,865 : 2,099,129 = 2,099,129 : x
  2. Step 2: Convert to fraction form
    988,865/2,099,129 = 2,099,129/x
  3. Step 3: Cross multiply
    988,865x = 2,099,129 × 2,099,129
  4. Step 4: Simplify right side
    988,865x = 4,406,342,558,641
  5. Step 5: Solve for x
    x = 4,406,342,558,641/988,865
  6. Step 6: Final answer
    x = 4,455,959.67

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.