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Finding the Fourth Proportional to 618.63, 852.93 and 441.81

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Solution

The fourth proportional to 618.63, 852.93 and 441.81 is: 609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.63 : 852.93 = 441.81 : x
  2. Step 2: Convert to fraction form
    618.63/852.93 = 441.81/x
  3. Step 3: Cross multiply
    618.63x = 852.93 × 441.81
  4. Step 4: Simplify right side
    618.63x = 376,827.08
  5. Step 5: Solve for x
    x = 376,827.08/618.63
  6. Step 6: Final answer
    x = 609.13

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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.