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Finding the Fourth Proportional to 574.37, 793.55 and 400.49

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Solution

The fourth proportional to 574.37, 793.55 and 400.49 is: 553.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.37 : 793.55 = 400.49 : x
  2. Step 2: Convert to fraction form
    574.37/793.55 = 400.49/x
  3. Step 3: Cross multiply
    574.37x = 793.55 × 400.49
  4. Step 4: Simplify right side
    574.37x = 317,805.87
  5. Step 5: Solve for x
    x = 317,805.87/574.37
  6. Step 6: Final answer
    x = 553.32

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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.