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Finding the Fourth Proportional to 637.94, 958.46 and 545.69

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Solution

The fourth proportional to 637.94, 958.46 and 545.69 is: 819.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.94 : 958.46 = 545.69 : x
  2. Step 2: Convert to fraction form
    637.94/958.46 = 545.69/x
  3. Step 3: Cross multiply
    637.94x = 958.46 × 545.69
  4. Step 4: Simplify right side
    637.94x = 523,014.52
  5. Step 5: Solve for x
    x = 523,014.52/637.94
  6. Step 6: Final answer
    x = 819.86

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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.