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Finding the Fourth Proportional to 551,471.80, 825,825.30 and 440,879.80

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Solution

The fourth proportional to 551,471.80, 825,825.30 and 440,879.80 is: 660,214.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,471.80 : 825,825.30 = 440,879.80 : x
  2. Step 2: Convert to fraction form
    551,471.80/825,825.30 = 440,879.80/x
  3. Step 3: Cross multiply
    551,471.80x = 825,825.30 × 440,879.80
  4. Step 4: Simplify right side
    551,471.80x = 364,089,693,098.94
  5. Step 5: Solve for x
    x = 364,089,693,098.94/551,471.80
  6. Step 6: Final answer
    x = 660,214.53

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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.