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Finding the Fourth Proportional to 932.67, 1,399.41 and 624.60

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Solution

The fourth proportional to 932.67, 1,399.41 and 624.60 is: 937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.67 : 1,399.41 = 624.60 : x
  2. Step 2: Convert to fraction form
    932.67/1,399.41 = 624.60/x
  3. Step 3: Cross multiply
    932.67x = 1,399.41 × 624.60
  4. Step 4: Simplify right side
    932.67x = 874,071.49
  5. Step 5: Solve for x
    x = 874,071.49/932.67
  6. Step 6: Final answer
    x = 937.17

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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.