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Finding the Third Proportional to 328,671 and 493,209.75

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Solution

The third proportional to 328,671 and 493,209.75 is: 740,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,671 : 493,209.75 = 493,209.75 : x
  2. Step 2: Convert to fraction form
    328,671/493,209.75 = 493,209.75/x
  3. Step 3: Cross multiply
    328,671x = 493,209.75 × 493,209.75
  4. Step 4: Simplify right side
    328,671x = 243,255,857,495.06
  5. Step 5: Solve for x
    x = 243,255,857,495.06/328,671
  6. Step 6: Final answer
    x = 740,119.63

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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.