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Finding the Fourth Proportional to 577.76, 865.41 and 467.60

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Solution

The fourth proportional to 577.76, 865.41 and 467.60 is: 700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.76 : 865.41 = 467.60 : x
  2. Step 2: Convert to fraction form
    577.76/865.41 = 467.60/x
  3. Step 3: Cross multiply
    577.76x = 865.41 × 467.60
  4. Step 4: Simplify right side
    577.76x = 404,665.72
  5. Step 5: Solve for x
    x = 404,665.72/577.76
  6. Step 6: Final answer
    x = 700.40

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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.