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Finding the Fourth Proportional to 483,951, 667,774.62 and 279,999.48

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Solution

The fourth proportional to 483,951, 667,774.62 and 279,999.48 is: 386,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,951 : 667,774.62 = 279,999.48 : x
  2. Step 2: Convert to fraction form
    483,951/667,774.62 = 279,999.48/x
  3. Step 3: Cross multiply
    483,951x = 667,774.62 × 279,999.48
  4. Step 4: Simplify right side
    483,951x = 186,976,546,357.20
  5. Step 5: Solve for x
    x = 186,976,546,357.20/483,951
  6. Step 6: Final answer
    x = 386,354.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.