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Finding the Fourth Proportional to 614.56, 847.84 and 404.84

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Solution

The fourth proportional to 614.56, 847.84 and 404.84 is: 558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.56 : 847.84 = 404.84 : x
  2. Step 2: Convert to fraction form
    614.56/847.84 = 404.84/x
  3. Step 3: Cross multiply
    614.56x = 847.84 × 404.84
  4. Step 4: Simplify right side
    614.56x = 343,239.55
  5. Step 5: Solve for x
    x = 343,239.55/614.56
  6. Step 6: Final answer
    x = 558.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.