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Finding the Fourth Proportional to 618.44, 848.37 and 581.18

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Solution

The fourth proportional to 618.44, 848.37 and 581.18 is: 797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.44 : 848.37 = 581.18 : x
  2. Step 2: Convert to fraction form
    618.44/848.37 = 581.18/x
  3. Step 3: Cross multiply
    618.44x = 848.37 × 581.18
  4. Step 4: Simplify right side
    618.44x = 493,053.61
  5. Step 5: Solve for x
    x = 493,053.61/618.44
  6. Step 6: Final answer
    x = 797.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.