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Finding the Fourth Proportional to 907.25, 1,252.20 and 591.96

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Solution

The fourth proportional to 907.25, 1,252.20 and 591.96 is: 817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.25 : 1,252.20 = 591.96 : x
  2. Step 2: Convert to fraction form
    907.25/1,252.20 = 591.96/x
  3. Step 3: Cross multiply
    907.25x = 1,252.20 × 591.96
  4. Step 4: Simplify right side
    907.25x = 741,252.31
  5. Step 5: Solve for x
    x = 741,252.31/907.25
  6. Step 6: Final answer
    x = 817.04

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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.