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Finding the Fourth Proportional to 620.28, 923.67 and 591.96

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Solution

The fourth proportional to 620.28, 923.67 and 591.96 is: 881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.28 : 923.67 = 591.96 : x
  2. Step 2: Convert to fraction form
    620.28/923.67 = 591.96/x
  3. Step 3: Cross multiply
    620.28x = 923.67 × 591.96
  4. Step 4: Simplify right side
    620.28x = 546,775.69
  5. Step 5: Solve for x
    x = 546,775.69/620.28
  6. Step 6: Final answer
    x = 881.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.