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Finding the Fourth Proportional to 584.74, 806.88 and 322.75

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Solution

The fourth proportional to 584.74, 806.88 and 322.75 is: 445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.74 : 806.88 = 322.75 : x
  2. Step 2: Convert to fraction form
    584.74/806.88 = 322.75/x
  3. Step 3: Cross multiply
    584.74x = 806.88 × 322.75
  4. Step 4: Simplify right side
    584.74x = 260,416.49
  5. Step 5: Solve for x
    x = 260,416.49/584.74
  6. Step 6: Final answer
    x = 445.36

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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.