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Finding the Fourth Proportional to 955.26, 1,318.87 and 601.66

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Solution

The fourth proportional to 955.26, 1,318.87 and 601.66 is: 830.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.26 : 1,318.87 = 601.66 : x
  2. Step 2: Convert to fraction form
    955.26/1,318.87 = 601.66/x
  3. Step 3: Cross multiply
    955.26x = 1,318.87 × 601.66
  4. Step 4: Simplify right side
    955.26x = 793,501.72
  5. Step 5: Solve for x
    x = 793,501.72/955.26
  6. Step 6: Final answer
    x = 830.67

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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.