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Finding the Fourth Proportional to 651.81, 894.71 and 576.48

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Solution

The fourth proportional to 651.81, 894.71 and 576.48 is: 791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.81 : 894.71 = 576.48 : x
  2. Step 2: Convert to fraction form
    651.81/894.71 = 576.48/x
  3. Step 3: Cross multiply
    651.81x = 894.71 × 576.48
  4. Step 4: Simplify right side
    651.81x = 515,779.54
  5. Step 5: Solve for x
    x = 515,779.54/651.81
  6. Step 6: Final answer
    x = 791.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.