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Finding the Fourth Proportional to 577.99, 797.79 and 548.60

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Solution

The fourth proportional to 577.99, 797.79 and 548.60 is: 757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.99 : 797.79 = 548.60 : x
  2. Step 2: Convert to fraction form
    577.99/797.79 = 548.60/x
  3. Step 3: Cross multiply
    577.99x = 797.79 × 548.60
  4. Step 4: Simplify right side
    577.99x = 437,667.59
  5. Step 5: Solve for x
    x = 437,667.59/577.99
  6. Step 6: Final answer
    x = 757.22

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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.