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Finding the Fourth Proportional to 550,474.80, 826,230.60 and 340,522.80

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Solution

The fourth proportional to 550,474.80, 826,230.60 and 340,522.80 is: 511,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,474.80 : 826,230.60 = 340,522.80 : x
  2. Step 2: Convert to fraction form
    550,474.80/826,230.60 = 340,522.80/x
  3. Step 3: Cross multiply
    550,474.80x = 826,230.60 × 340,522.80
  4. Step 4: Simplify right side
    550,474.80x = 281,350,357,357.68
  5. Step 5: Solve for x
    x = 281,350,357,357.68/550,474.80
  6. Step 6: Final answer
    x = 511,104.88

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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.