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Finding the Fourth Proportional to 457.24, 685.38 and 433.24

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Solution

The fourth proportional to 457.24, 685.38 and 433.24 is: 649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.24 : 685.38 = 433.24 : x
  2. Step 2: Convert to fraction form
    457.24/685.38 = 433.24/x
  3. Step 3: Cross multiply
    457.24x = 685.38 × 433.24
  4. Step 4: Simplify right side
    457.24x = 296,934.03
  5. Step 5: Solve for x
    x = 296,934.03/457.24
  6. Step 6: Final answer
    x = 649.41

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.