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Finding the Third Proportional to 287,651.50 and 625,805

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Solution

The third proportional to 287,651.50 and 625,805 is: 1,361,480.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,651.50 : 625,805 = 625,805 : x
  2. Step 2: Convert to fraction form
    287,651.50/625,805 = 625,805/x
  3. Step 3: Cross multiply
    287,651.50x = 625,805 × 625,805
  4. Step 4: Simplify right side
    287,651.50x = 391,631,898,025
  5. Step 5: Solve for x
    x = 391,631,898,025/287,651.50
  6. Step 6: Final answer
    x = 1,361,480.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.