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Finding the Fourth Proportional to 669.01, 922.26 and 472.18

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Solution

The fourth proportional to 669.01, 922.26 and 472.18 is: 650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.01 : 922.26 = 472.18 : x
  2. Step 2: Convert to fraction form
    669.01/922.26 = 472.18/x
  3. Step 3: Cross multiply
    669.01x = 922.26 × 472.18
  4. Step 4: Simplify right side
    669.01x = 435,472.59
  5. Step 5: Solve for x
    x = 435,472.59/669.01
  6. Step 6: Final answer
    x = 650.92

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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.