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Finding the Third Proportional to 429,064.50 and 582,720

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Solution

The third proportional to 429,064.50 and 582,720 is: 791,402.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,064.50 : 582,720 = 582,720 : x
  2. Step 2: Convert to fraction form
    429,064.50/582,720 = 582,720/x
  3. Step 3: Cross multiply
    429,064.50x = 582,720 × 582,720
  4. Step 4: Simplify right side
    429,064.50x = 339,562,598,400
  5. Step 5: Solve for x
    x = 339,562,598,400/429,064.50
  6. Step 6: Final answer
    x = 791,402.22

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.