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Finding the Fourth Proportional to 920.00, 1,269.45 and 546.96

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Solution

The fourth proportional to 920.00, 1,269.45 and 546.96 is: 754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    920.00 : 1,269.45 = 546.96 : x
  2. Step 2: Convert to fraction form
    920.00/1,269.45 = 546.96/x
  3. Step 3: Cross multiply
    920.00x = 1,269.45 × 546.96
  4. Step 4: Simplify right side
    920.00x = 694,338.37
  5. Step 5: Solve for x
    x = 694,338.37/920.00
  6. Step 6: Final answer
    x = 754.72

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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.