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Finding the Fourth Proportional to 584.01, 805.73 and 397.17

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Solution

The fourth proportional to 584.01, 805.73 and 397.17 is: 547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.01 : 805.73 = 397.17 : x
  2. Step 2: Convert to fraction form
    584.01/805.73 = 397.17/x
  3. Step 3: Cross multiply
    584.01x = 805.73 × 397.17
  4. Step 4: Simplify right side
    584.01x = 320,009.80
  5. Step 5: Solve for x
    x = 320,009.80/584.01
  6. Step 6: Final answer
    x = 547.95

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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.