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Finding the Fourth Proportional to 587.41, 810.65 and 325.42

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Solution

The fourth proportional to 587.41, 810.65 and 325.42 is: 449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.41 : 810.65 = 325.42 : x
  2. Step 2: Convert to fraction form
    587.41/810.65 = 325.42/x
  3. Step 3: Cross multiply
    587.41x = 810.65 × 325.42
  4. Step 4: Simplify right side
    587.41x = 263,801.72
  5. Step 5: Solve for x
    x = 263,801.72/587.41
  6. Step 6: Final answer
    x = 449.09

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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.