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Finding the Fourth Proportional to 483,562.85, 667,401.80 and 279,581.36

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Solution

The fourth proportional to 483,562.85, 667,401.80 and 279,581.36 is: 385,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,562.85 : 667,401.80 = 279,581.36 : x
  2. Step 2: Convert to fraction form
    483,562.85/667,401.80 = 279,581.36/x
  3. Step 3: Cross multiply
    483,562.85x = 667,401.80 × 279,581.36
  4. Step 4: Simplify right side
    483,562.85x = 186,593,098,175.53
  5. Step 5: Solve for x
    x = 186,593,098,175.53/483,562.85
  6. Step 6: Final answer
    x = 385,871.45

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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.