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Finding the Fourth Proportional to 535.76, 739.01 and 411.23

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Solution

The fourth proportional to 535.76, 739.01 and 411.23 is: 567.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.76 : 739.01 = 411.23 : x
  2. Step 2: Convert to fraction form
    535.76/739.01 = 411.23/x
  3. Step 3: Cross multiply
    535.76x = 739.01 × 411.23
  4. Step 4: Simplify right side
    535.76x = 303,897.33
  5. Step 5: Solve for x
    x = 303,897.33/535.76
  6. Step 6: Final answer
    x = 567.23

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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.