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Finding the Fourth Proportional to 629.70, 869.03 and 364.19

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Solution

The fourth proportional to 629.70, 869.03 and 364.19 is: 502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.70 : 869.03 = 364.19 : x
  2. Step 2: Convert to fraction form
    629.70/869.03 = 364.19/x
  3. Step 3: Cross multiply
    629.70x = 869.03 × 364.19
  4. Step 4: Simplify right side
    629.70x = 316,492.04
  5. Step 5: Solve for x
    x = 316,492.04/629.70
  6. Step 6: Final answer
    x = 502.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.