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Finding the Fourth Proportional to 577.18, 860.32 and 559.88

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Solution

The fourth proportional to 577.18, 860.32 and 559.88 is: 834.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.18 : 860.32 = 559.88 : x
  2. Step 2: Convert to fraction form
    577.18/860.32 = 559.88/x
  3. Step 3: Cross multiply
    577.18x = 860.32 × 559.88
  4. Step 4: Simplify right side
    577.18x = 481,675.96
  5. Step 5: Solve for x
    x = 481,675.96/577.18
  6. Step 6: Final answer
    x = 834.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.