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Finding the Fourth Proportional to 629.87, 942.37 and 508.37

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Solution

The fourth proportional to 629.87, 942.37 and 508.37 is: 760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.87 : 942.37 = 508.37 : x
  2. Step 2: Convert to fraction form
    629.87/942.37 = 508.37/x
  3. Step 3: Cross multiply
    629.87x = 942.37 × 508.37
  4. Step 4: Simplify right side
    629.87x = 479,066.65
  5. Step 5: Solve for x
    x = 479,066.65/629.87
  6. Step 6: Final answer
    x = 760.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.