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Finding the Fourth Proportional to 872,251.20, 1,308,463.20 and 303,544.80

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Solution

The fourth proportional to 872,251.20, 1,308,463.20 and 303,544.80 is: 455,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,251.20 : 1,308,463.20 = 303,544.80 : x
  2. Step 2: Convert to fraction form
    872,251.20/1,308,463.20 = 303,544.80/x
  3. Step 3: Cross multiply
    872,251.20x = 1,308,463.20 × 303,544.80
  4. Step 4: Simplify right side
    872,251.20x = 397,177,200,351.36
  5. Step 5: Solve for x
    x = 397,177,200,351.36/872,251.20
  6. Step 6: Final answer
    x = 455,347.27

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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.