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Finding the Fourth Proportional to 483,519.47, 667,217.79 and 279,583.59

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Solution

The fourth proportional to 483,519.47, 667,217.79 and 279,583.59 is: 385,802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,519.47 : 667,217.79 = 279,583.59 : x
  2. Step 2: Convert to fraction form
    483,519.47/667,217.79 = 279,583.59/x
  3. Step 3: Cross multiply
    483,519.47x = 667,217.79 × 279,583.59
  4. Step 4: Simplify right side
    483,519.47x = 186,543,147,542.13
  5. Step 5: Solve for x
    x = 186,543,147,542.13/483,519.47
  6. Step 6: Final answer
    x = 385,802.77

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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.