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Finding the Fourth Proportional to 668.67, 923.18 and 432.83

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Solution

The fourth proportional to 668.67, 923.18 and 432.83 is: 597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.67 : 923.18 = 432.83 : x
  2. Step 2: Convert to fraction form
    668.67/923.18 = 432.83/x
  3. Step 3: Cross multiply
    668.67x = 923.18 × 432.83
  4. Step 4: Simplify right side
    668.67x = 399,573.22
  5. Step 5: Solve for x
    x = 399,573.22/668.67
  6. Step 6: Final answer
    x = 597.56

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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.