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Finding the Fourth Proportional to 605,589.80, 908,384.70 and 394,082.60

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Solution

The fourth proportional to 605,589.80, 908,384.70 and 394,082.60 is: 591,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,589.80 : 908,384.70 = 394,082.60 : x
  2. Step 2: Convert to fraction form
    605,589.80/908,384.70 = 394,082.60/x
  3. Step 3: Cross multiply
    605,589.80x = 908,384.70 × 394,082.60
  4. Step 4: Simplify right side
    605,589.80x = 357,978,604,376.22
  5. Step 5: Solve for x
    x = 357,978,604,376.22/605,589.80
  6. Step 6: Final answer
    x = 591,123.90

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Similar ratio
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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.