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Finding the Fourth Proportional to 617.67, 923.72 and 471.46

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Solution

The fourth proportional to 617.67, 923.72 and 471.46 is: 705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.67 : 923.72 = 471.46 : x
  2. Step 2: Convert to fraction form
    617.67/923.72 = 471.46/x
  3. Step 3: Cross multiply
    617.67x = 923.72 × 471.46
  4. Step 4: Simplify right side
    617.67x = 435,497.03
  5. Step 5: Solve for x
    x = 435,497.03/617.67
  6. Step 6: Final answer
    x = 705.06

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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.