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Finding the Fourth Proportional to 559.71, 771.26 and 535.14

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Solution

The fourth proportional to 559.71, 771.26 and 535.14 is: 737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.71 : 771.26 = 535.14 : x
  2. Step 2: Convert to fraction form
    559.71/771.26 = 535.14/x
  3. Step 3: Cross multiply
    559.71x = 771.26 × 535.14
  4. Step 4: Simplify right side
    559.71x = 412,729.40
  5. Step 5: Solve for x
    x = 412,729.40/559.71
  6. Step 6: Final answer
    x = 737.40

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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.