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Finding the Fourth Proportional to 574.94, 793.50 and 322.90

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Solution

The fourth proportional to 574.94, 793.50 and 322.90 is: 445.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.94 : 793.50 = 322.90 : x
  2. Step 2: Convert to fraction form
    574.94/793.50 = 322.90/x
  3. Step 3: Cross multiply
    574.94x = 793.50 × 322.90
  4. Step 4: Simplify right side
    574.94x = 256,217.18
  5. Step 5: Solve for x
    x = 256,217.18/574.94
  6. Step 6: Final answer
    x = 445.64

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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.