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Finding the Third Proportional to 572,865.75 and 621,253.13

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Solution

The third proportional to 572,865.75 and 621,253.13 is: 673,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,865.75 : 621,253.13 = 621,253.13 : x
  2. Step 2: Convert to fraction form
    572,865.75/621,253.13 = 621,253.13/x
  3. Step 3: Cross multiply
    572,865.75x = 621,253.13 × 621,253.13
  4. Step 4: Simplify right side
    572,865.75x = 385,955,445,322.27
  5. Step 5: Solve for x
    x = 385,955,445,322.27/572,865.75
  6. Step 6: Final answer
    x = 673,727.56

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.