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Finding the Fourth Proportional to 584.55, 806.75 and 322.59

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Solution

The fourth proportional to 584.55, 806.75 and 322.59 is: 445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.55 : 806.75 = 322.59 : x
  2. Step 2: Convert to fraction form
    584.55/806.75 = 322.59/x
  3. Step 3: Cross multiply
    584.55x = 806.75 × 322.59
  4. Step 4: Simplify right side
    584.55x = 260,247.87
  5. Step 5: Solve for x
    x = 260,247.87/584.55
  6. Step 6: Final answer
    x = 445.21

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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.