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Finding the Fourth Proportional to 642.92, 964.67 and 588.23

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Solution

The fourth proportional to 642.92, 964.67 and 588.23 is: 882.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    642.92 : 964.67 = 588.23 : x
  2. Step 2: Convert to fraction form
    642.92/964.67 = 588.23/x
  3. Step 3: Cross multiply
    642.92x = 964.67 × 588.23
  4. Step 4: Simplify right side
    642.92x = 567,444.89
  5. Step 5: Solve for x
    x = 567,444.89/642.92
  6. Step 6: Final answer
    x = 882.61

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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.