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Finding the Fourth Proportional to 627,721.13, 941,582.15 and 206,997

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Solution

The fourth proportional to 627,721.13, 941,582.15 and 206,997 is: 310,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,721.13 : 941,582.15 = 206,997 : x
  2. Step 2: Convert to fraction form
    627,721.13/941,582.15 = 206,997/x
  3. Step 3: Cross multiply
    627,721.13x = 941,582.15 × 206,997
  4. Step 4: Simplify right side
    627,721.13x = 194,904,679,268.57
  5. Step 5: Solve for x
    x = 194,904,679,268.57/627,721.13
  6. Step 6: Final answer
    x = 310,495.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.