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Finding the Fourth Proportional to 574.51, 860.67 and 496.59

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Solution

The fourth proportional to 574.51, 860.67 and 496.59 is: 743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.51 : 860.67 = 496.59 : x
  2. Step 2: Convert to fraction form
    574.51/860.67 = 496.59/x
  3. Step 3: Cross multiply
    574.51x = 860.67 × 496.59
  4. Step 4: Simplify right side
    574.51x = 427,400.12
  5. Step 5: Solve for x
    x = 427,400.12/574.51
  6. Step 6: Final answer
    x = 743.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.