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Finding the Third Proportional to 326,289 and 459,495

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Solution

The third proportional to 326,289 and 459,495 is: 647,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,289 : 459,495 = 459,495 : x
  2. Step 2: Convert to fraction form
    326,289/459,495 = 459,495/x
  3. Step 3: Cross multiply
    326,289x = 459,495 × 459,495
  4. Step 4: Simplify right side
    326,289x = 211,135,655,025
  5. Step 5: Solve for x
    x = 211,135,655,025/326,289
  6. Step 6: Final answer
    x = 647,081.74

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.