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Finding the Fourth Proportional to 587.44, 810.66 and 325.45

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Solution

The fourth proportional to 587.44, 810.66 and 325.45 is: 449.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.44 : 810.66 = 325.45 : x
  2. Step 2: Convert to fraction form
    587.44/810.66 = 325.45/x
  3. Step 3: Cross multiply
    587.44x = 810.66 × 325.45
  4. Step 4: Simplify right side
    587.44x = 263,829.30
  5. Step 5: Solve for x
    x = 263,829.30/587.44
  6. Step 6: Final answer
    x = 449.12

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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.