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Finding the Third Proportional to 339,558 and 459,513

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Solution

The third proportional to 339,558 and 459,513 is: 621,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,558 : 459,513 = 459,513 : x
  2. Step 2: Convert to fraction form
    339,558/459,513 = 459,513/x
  3. Step 3: Cross multiply
    339,558x = 459,513 × 459,513
  4. Step 4: Simplify right side
    339,558x = 211,152,197,169
  5. Step 5: Solve for x
    x = 211,152,197,169/339,558
  6. Step 6: Final answer
    x = 621,844.27

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.