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Finding the Fourth Proportional to 584.06, 805.73 and 395.06

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Solution

The fourth proportional to 584.06, 805.73 and 395.06 is: 544.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.06 : 805.73 = 395.06 : x
  2. Step 2: Convert to fraction form
    584.06/805.73 = 395.06/x
  3. Step 3: Cross multiply
    584.06x = 805.73 × 395.06
  4. Step 4: Simplify right side
    584.06x = 318,305.69
  5. Step 5: Solve for x
    x = 318,305.69/584.06
  6. Step 6: Final answer
    x = 544.99

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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.