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Finding the Third Proportional to 338,728.50 and 524,778

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Solution

The third proportional to 338,728.50 and 524,778 is: 813,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,728.50 : 524,778 = 524,778 : x
  2. Step 2: Convert to fraction form
    338,728.50/524,778 = 524,778/x
  3. Step 3: Cross multiply
    338,728.50x = 524,778 × 524,778
  4. Step 4: Simplify right side
    338,728.50x = 275,391,949,284
  5. Step 5: Solve for x
    x = 275,391,949,284/338,728.50
  6. Step 6: Final answer
    x = 813,016.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.