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Finding the Fourth Proportional to 600.65, 899.27 and 405.26

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Solution

The fourth proportional to 600.65, 899.27 and 405.26 is: 606.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.65 : 899.27 = 405.26 : x
  2. Step 2: Convert to fraction form
    600.65/899.27 = 405.26/x
  3. Step 3: Cross multiply
    600.65x = 899.27 × 405.26
  4. Step 4: Simplify right side
    600.65x = 364,431.64
  5. Step 5: Solve for x
    x = 364,431.64/600.65
  6. Step 6: Final answer
    x = 606.73

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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.