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Finding the Fourth Proportional to 694.37, 1,043.08 and 605.27

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Solution

The fourth proportional to 694.37, 1,043.08 and 605.27 is: 909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.37 : 1,043.08 = 605.27 : x
  2. Step 2: Convert to fraction form
    694.37/1,043.08 = 605.27/x
  3. Step 3: Cross multiply
    694.37x = 1,043.08 × 605.27
  4. Step 4: Simplify right side
    694.37x = 631,346.13
  5. Step 5: Solve for x
    x = 631,346.13/694.37
  6. Step 6: Final answer
    x = 909.23

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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.