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Finding the Fourth Proportional to 669.02, 923.57 and 503.30

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Solution

The fourth proportional to 669.02, 923.57 and 503.30 is: 694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.02 : 923.57 = 503.30 : x
  2. Step 2: Convert to fraction form
    669.02/923.57 = 503.30/x
  3. Step 3: Cross multiply
    669.02x = 923.57 × 503.30
  4. Step 4: Simplify right side
    669.02x = 464,827.96
  5. Step 5: Solve for x
    x = 464,827.96/669.02
  6. Step 6: Final answer
    x = 694.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.