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Finding the Third Proportional to 615,694.50 and 921,071.25

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Solution

The third proportional to 615,694.50 and 921,071.25 is: 1,377,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,694.50 : 921,071.25 = 921,071.25 : x
  2. Step 2: Convert to fraction form
    615,694.50/921,071.25 = 921,071.25/x
  3. Step 3: Cross multiply
    615,694.50x = 921,071.25 × 921,071.25
  4. Step 4: Simplify right side
    615,694.50x = 848,372,247,576.56
  5. Step 5: Solve for x
    x = 848,372,247,576.56/615,694.50
  6. Step 6: Final answer
    x = 1,377,911.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.