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Finding the Third Proportional to 358,380 and 769,889.25

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Solution

The third proportional to 358,380 and 769,889.25 is: 1,653,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,380 : 769,889.25 = 769,889.25 : x
  2. Step 2: Convert to fraction form
    358,380/769,889.25 = 769,889.25/x
  3. Step 3: Cross multiply
    358,380x = 769,889.25 × 769,889.25
  4. Step 4: Simplify right side
    358,380x = 592,729,457,265.56
  5. Step 5: Solve for x
    x = 592,729,457,265.56/358,380
  6. Step 6: Final answer
    x = 1,653,913.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.