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Finding the Fourth Proportional to 551,437.80, 825,774.30 and 440,845.80

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Solution

The fourth proportional to 551,437.80, 825,774.30 and 440,845.80 is: 660,163.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,437.80 : 825,774.30 = 440,845.80 : x
  2. Step 2: Convert to fraction form
    551,437.80/825,774.30 = 440,845.80/x
  3. Step 3: Cross multiply
    551,437.80x = 825,774.30 × 440,845.80
  4. Step 4: Simplify right side
    551,437.80x = 364,039,131,902.94
  5. Step 5: Solve for x
    x = 364,039,131,902.94/551,437.80
  6. Step 6: Final answer
    x = 660,163.54

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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.