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Finding the Fourth Proportional to 483,617.37, 667,338.99 and 279,637.43

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Solution

The fourth proportional to 483,617.37, 667,338.99 and 279,637.43 is: 385,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,617.37 : 667,338.99 = 279,637.43 : x
  2. Step 2: Convert to fraction form
    483,617.37/667,338.99 = 279,637.43/x
  3. Step 3: Cross multiply
    483,617.37x = 667,338.99 × 279,637.43
  4. Step 4: Simplify right side
    483,617.37x = 186,612,959,470.84
  5. Step 5: Solve for x
    x = 186,612,959,470.84/483,617.37
  6. Step 6: Final answer
    x = 385,869.01

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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.