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Finding the Fourth Proportional to 629.38, 943.26 and 526.51

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Solution

The fourth proportional to 629.38, 943.26 and 526.51 is: 789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.38 : 943.26 = 526.51 : x
  2. Step 2: Convert to fraction form
    629.38/943.26 = 526.51/x
  3. Step 3: Cross multiply
    629.38x = 943.26 × 526.51
  4. Step 4: Simplify right side
    629.38x = 496,635.82
  5. Step 5: Solve for x
    x = 496,635.82/629.38
  6. Step 6: Final answer
    x = 789.09

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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.