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Finding the Fourth Proportional to 617.03, 850.88 and 406.99

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Solution

The fourth proportional to 617.03, 850.88 and 406.99 is: 561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.03 : 850.88 = 406.99 : x
  2. Step 2: Convert to fraction form
    617.03/850.88 = 406.99/x
  3. Step 3: Cross multiply
    617.03x = 850.88 × 406.99
  4. Step 4: Simplify right side
    617.03x = 346,297.00
  5. Step 5: Solve for x
    x = 346,297.00/617.03
  6. Step 6: Final answer
    x = 561.23

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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.