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Finding the Fourth Proportional to 447,957.06, 618,074.67 and 254,322.78

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Solution

The fourth proportional to 447,957.06, 618,074.67 and 254,322.78 is: 350,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,957.06 : 618,074.67 = 254,322.78 : x
  2. Step 2: Convert to fraction form
    447,957.06/618,074.67 = 254,322.78/x
  3. Step 3: Cross multiply
    447,957.06x = 618,074.67 × 254,322.78
  4. Step 4: Simplify right side
    447,957.06x = 157,190,468,321.98
  5. Step 5: Solve for x
    x = 157,190,468,321.98/447,957.06
  6. Step 6: Final answer
    x = 350,905.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.