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Finding the Fourth Proportional to 614.07, 847.43 and 481.45

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Solution

The fourth proportional to 614.07, 847.43 and 481.45 is: 664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.07 : 847.43 = 481.45 : x
  2. Step 2: Convert to fraction form
    614.07/847.43 = 481.45/x
  3. Step 3: Cross multiply
    614.07x = 847.43 × 481.45
  4. Step 4: Simplify right side
    614.07x = 407,994.04
  5. Step 5: Solve for x
    x = 407,994.04/614.07
  6. Step 6: Final answer
    x = 664.41

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Why These Related Problems?

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