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Finding the Fourth Proportional to 577.08, 795.77 and 494.46

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Solution

The fourth proportional to 577.08, 795.77 and 494.46 is: 681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.08 : 795.77 = 494.46 : x
  2. Step 2: Convert to fraction form
    577.08/795.77 = 494.46/x
  3. Step 3: Cross multiply
    577.08x = 795.77 × 494.46
  4. Step 4: Simplify right side
    577.08x = 393,476.43
  5. Step 5: Solve for x
    x = 393,476.43/577.08
  6. Step 6: Final answer
    x = 681.84

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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.