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Finding the Fourth Proportional to 577.60, 797.11 and 328.96

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Solution

The fourth proportional to 577.60, 797.11 and 328.96 is: 453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.60 : 797.11 = 328.96 : x
  2. Step 2: Convert to fraction form
    577.60/797.11 = 328.96/x
  3. Step 3: Cross multiply
    577.60x = 797.11 × 328.96
  4. Step 4: Simplify right side
    577.60x = 262,215.66
  5. Step 5: Solve for x
    x = 262,215.66/577.60
  6. Step 6: Final answer
    x = 453.98

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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.