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Finding the Fourth Proportional to 614.44, 919.74 and 469.96

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Solution

The fourth proportional to 614.44, 919.74 and 469.96 is: 703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.44 : 919.74 = 469.96 : x
  2. Step 2: Convert to fraction form
    614.44/919.74 = 469.96/x
  3. Step 3: Cross multiply
    614.44x = 919.74 × 469.96
  4. Step 4: Simplify right side
    614.44x = 432,241.01
  5. Step 5: Solve for x
    x = 432,241.01/614.44
  6. Step 6: Final answer
    x = 703.47

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Why These Related Problems?

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