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Finding the Third Proportional to 393,208.88 and 860,010.75

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Solution

The third proportional to 393,208.88 and 860,010.75 is: 1,880,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,208.88 : 860,010.75 = 860,010.75 : x
  2. Step 2: Convert to fraction form
    393,208.88/860,010.75 = 860,010.75/x
  3. Step 3: Cross multiply
    393,208.88x = 860,010.75 × 860,010.75
  4. Step 4: Simplify right side
    393,208.88x = 739,618,490,115.56
  5. Step 5: Solve for x
    x = 739,618,490,115.56/393,208.88
  6. Step 6: Final answer
    x = 1,880,981.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.