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Finding the Third Proportional to 978,318 and 2,124,265.50

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Solution

The third proportional to 978,318 and 2,124,265.50 is: 4,612,512.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,318 : 2,124,265.50 = 2,124,265.50 : x
  2. Step 2: Convert to fraction form
    978,318/2,124,265.50 = 2,124,265.50/x
  3. Step 3: Cross multiply
    978,318x = 2,124,265.50 × 2,124,265.50
  4. Step 4: Simplify right side
    978,318x = 4,512,503,914,490.25
  5. Step 5: Solve for x
    x = 4,512,503,914,490.25/978,318
  6. Step 6: Final answer
    x = 4,612,512.41

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.