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Finding the Fourth Proportional to 958.36, 1,323.58 and 609.26

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Solution

The fourth proportional to 958.36, 1,323.58 and 609.26 is: 841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.36 : 1,323.58 = 609.26 : x
  2. Step 2: Convert to fraction form
    958.36/1,323.58 = 609.26/x
  3. Step 3: Cross multiply
    958.36x = 1,323.58 × 609.26
  4. Step 4: Simplify right side
    958.36x = 806,404.35
  5. Step 5: Solve for x
    x = 806,404.35/958.36
  6. Step 6: Final answer
    x = 841.44

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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.