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Finding the Fourth Proportional to 564.67, 779.78 and 533.99

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Solution

The fourth proportional to 564.67, 779.78 and 533.99 is: 737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.67 : 779.78 = 533.99 : x
  2. Step 2: Convert to fraction form
    564.67/779.78 = 533.99/x
  3. Step 3: Cross multiply
    564.67x = 779.78 × 533.99
  4. Step 4: Simplify right side
    564.67x = 416,394.72
  5. Step 5: Solve for x
    x = 416,394.72/564.67
  6. Step 6: Final answer
    x = 737.41

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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.