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Finding the Fourth Proportional to 618, 854.44 and 590.80

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Solution

The fourth proportional to 618, 854.44 and 590.80 is: 816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    618 : 854.44 = 590.80 : x
  2. Step 2: Convert to fraction form
    618/854.44 = 590.80/x
  3. Step 3: Cross multiply
    618x = 854.44 × 590.80
  4. Step 4: Simplify right side
    618x = 504,803.15
  5. Step 5: Solve for x
    x = 504,803.15/618
  6. Step 6: Final answer
    x = 816.83

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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.