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Finding the Fourth Proportional to 669.67, 924.56 and 433.83

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Solution

The fourth proportional to 669.67, 924.56 and 433.83 is: 598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.67 : 924.56 = 433.83 : x
  2. Step 2: Convert to fraction form
    669.67/924.56 = 433.83/x
  3. Step 3: Cross multiply
    669.67x = 924.56 × 433.83
  4. Step 4: Simplify right side
    669.67x = 401,101.86
  5. Step 5: Solve for x
    x = 401,101.86/669.67
  6. Step 6: Final answer
    x = 598.95

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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.