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Finding the Third Proportional to 391,675.50 and 528,462

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Solution

The third proportional to 391,675.50 and 528,462 is: 713,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,675.50 : 528,462 = 528,462 : x
  2. Step 2: Convert to fraction form
    391,675.50/528,462 = 528,462/x
  3. Step 3: Cross multiply
    391,675.50x = 528,462 × 528,462
  4. Step 4: Simplify right side
    391,675.50x = 279,272,085,444
  5. Step 5: Solve for x
    x = 279,272,085,444/391,675.50
  6. Step 6: Final answer
    x = 713,019.03

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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.