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Finding the Third Proportional to 384,302 and 547,445

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Solution

The third proportional to 384,302 and 547,445 is: 779,845.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,302 : 547,445 = 547,445 : x
  2. Step 2: Convert to fraction form
    384,302/547,445 = 547,445/x
  3. Step 3: Cross multiply
    384,302x = 547,445 × 547,445
  4. Step 4: Simplify right side
    384,302x = 299,696,028,025
  5. Step 5: Solve for x
    x = 299,696,028,025/384,302
  6. Step 6: Final answer
    x = 779,845.09

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.