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Finding the Fourth Proportional to 605.73, 907.92 and 397.25

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Solution

The fourth proportional to 605.73, 907.92 and 397.25 is: 595.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.73 : 907.92 = 397.25 : x
  2. Step 2: Convert to fraction form
    605.73/907.92 = 397.25/x
  3. Step 3: Cross multiply
    605.73x = 907.92 × 397.25
  4. Step 4: Simplify right side
    605.73x = 360,671.22
  5. Step 5: Solve for x
    x = 360,671.22/605.73
  6. Step 6: Final answer
    x = 595.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.