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Finding the Fourth Proportional to 437,405.20, 656,107.80 and 382,109.20

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Solution

The fourth proportional to 437,405.20, 656,107.80 and 382,109.20 is: 573,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,405.20 : 656,107.80 = 382,109.20 : x
  2. Step 2: Convert to fraction form
    437,405.20/656,107.80 = 382,109.20/x
  3. Step 3: Cross multiply
    437,405.20x = 656,107.80 × 382,109.20
  4. Step 4: Simplify right side
    437,405.20x = 250,704,826,571.76
  5. Step 5: Solve for x
    x = 250,704,826,571.76/437,405.20
  6. Step 6: Final answer
    x = 573,163.80

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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.