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Finding the Fourth Proportional to 517.74, 775.80 and 373.56

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Solution

The fourth proportional to 517.74, 775.80 and 373.56 is: 559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.74 : 775.80 = 373.56 : x
  2. Step 2: Convert to fraction form
    517.74/775.80 = 373.56/x
  3. Step 3: Cross multiply
    517.74x = 775.80 × 373.56
  4. Step 4: Simplify right side
    517.74x = 289,807.85
  5. Step 5: Solve for x
    x = 289,807.85/517.74
  6. Step 6: Final answer
    x = 559.76

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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.