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Finding the Fourth Proportional to 914.17, 1,260.44 and 692.73

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Solution

The fourth proportional to 914.17, 1,260.44 and 692.73 is: 955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.17 : 1,260.44 = 692.73 : x
  2. Step 2: Convert to fraction form
    914.17/1,260.44 = 692.73/x
  3. Step 3: Cross multiply
    914.17x = 1,260.44 × 692.73
  4. Step 4: Simplify right side
    914.17x = 873,141.14
  5. Step 5: Solve for x
    x = 873,141.14/914.17
  6. Step 6: Final answer
    x = 955.12

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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.