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Finding the Fourth Proportional to 577.02, 863.80 and 514.76

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Solution

The fourth proportional to 577.02, 863.80 and 514.76 is: 770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.02 : 863.80 = 514.76 : x
  2. Step 2: Convert to fraction form
    577.02/863.80 = 514.76/x
  3. Step 3: Cross multiply
    577.02x = 863.80 × 514.76
  4. Step 4: Simplify right side
    577.02x = 444,649.69
  5. Step 5: Solve for x
    x = 444,649.69/577.02
  6. Step 6: Final answer
    x = 770.60

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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.