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Finding the Fourth Proportional to 629.36, 867.50 and 504.80

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Solution

The fourth proportional to 629.36, 867.50 and 504.80 is: 695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.36 : 867.50 = 504.80 : x
  2. Step 2: Convert to fraction form
    629.36/867.50 = 504.80/x
  3. Step 3: Cross multiply
    629.36x = 867.50 × 504.80
  4. Step 4: Simplify right side
    629.36x = 437,914
  5. Step 5: Solve for x
    x = 437,914/629.36
  6. Step 6: Final answer
    x = 695.81

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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.