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Finding the Fourth Proportional to 533.70, 734.81 and 506.39

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Solution

The fourth proportional to 533.70, 734.81 and 506.39 is: 697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.70 : 734.81 = 506.39 : x
  2. Step 2: Convert to fraction form
    533.70/734.81 = 506.39/x
  3. Step 3: Cross multiply
    533.70x = 734.81 × 506.39
  4. Step 4: Simplify right side
    533.70x = 372,094.23
  5. Step 5: Solve for x
    x = 372,094.23/533.70
  6. Step 6: Final answer
    x = 697.20

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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.