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Finding the Fourth Proportional to 580.12, 866.02 and 559.87

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Solution

The fourth proportional to 580.12, 866.02 and 559.87 is: 835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.12 : 866.02 = 559.87 : x
  2. Step 2: Convert to fraction form
    580.12/866.02 = 559.87/x
  3. Step 3: Cross multiply
    580.12x = 866.02 × 559.87
  4. Step 4: Simplify right side
    580.12x = 484,856.39
  5. Step 5: Solve for x
    x = 484,856.39/580.12
  6. Step 6: Final answer
    x = 835.79

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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.