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Finding the Fourth Proportional to 517.14, 712.89 and 433.62

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Solution

The fourth proportional to 517.14, 712.89 and 433.62 is: 597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.14 : 712.89 = 433.62 : x
  2. Step 2: Convert to fraction form
    517.14/712.89 = 433.62/x
  3. Step 3: Cross multiply
    517.14x = 712.89 × 433.62
  4. Step 4: Simplify right side
    517.14x = 309,123.36
  5. Step 5: Solve for x
    x = 309,123.36/517.14
  6. Step 6: Final answer
    x = 597.76

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1.5x scale

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.