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Finding the Fourth Proportional to 587.67, 810.03 and 554.86

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Solution

The fourth proportional to 587.67, 810.03 and 554.86 is: 764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.67 : 810.03 = 554.86 : x
  2. Step 2: Convert to fraction form
    587.67/810.03 = 554.86/x
  3. Step 3: Cross multiply
    587.67x = 810.03 × 554.86
  4. Step 4: Simplify right side
    587.67x = 449,453.25
  5. Step 5: Solve for x
    x = 449,453.25/587.67
  6. Step 6: Final answer
    x = 764.81

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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.