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Finding the Fourth Proportional to 940.38, 1,409.52 and 593.96

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Solution

The fourth proportional to 940.38, 1,409.52 and 593.96 is: 890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.38 : 1,409.52 = 593.96 : x
  2. Step 2: Convert to fraction form
    940.38/1,409.52 = 593.96/x
  3. Step 3: Cross multiply
    940.38x = 1,409.52 × 593.96
  4. Step 4: Simplify right side
    940.38x = 837,198.50
  5. Step 5: Solve for x
    x = 837,198.50/940.38
  6. Step 6: Final answer
    x = 890.28

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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.