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Finding the Fourth Proportional to 580.20, 868.70 and 452.20

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Solution

The fourth proportional to 580.20, 868.70 and 452.20 is: 677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.20 : 868.70 = 452.20 : x
  2. Step 2: Convert to fraction form
    580.20/868.70 = 452.20/x
  3. Step 3: Cross multiply
    580.20x = 868.70 × 452.20
  4. Step 4: Simplify right side
    580.20x = 392,826.14
  5. Step 5: Solve for x
    x = 392,826.14/580.20
  6. Step 6: Final answer
    x = 677.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.