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Finding the Fourth Proportional to 449,901.94, 620,872.05 and 268,629.71

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Solution

The fourth proportional to 449,901.94, 620,872.05 and 268,629.71 is: 370,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,901.94 : 620,872.05 = 268,629.71 : x
  2. Step 2: Convert to fraction form
    449,901.94/620,872.05 = 268,629.71/x
  3. Step 3: Cross multiply
    449,901.94x = 620,872.05 × 268,629.71
  4. Step 4: Simplify right side
    449,901.94x = 166,784,677,632.29
  5. Step 5: Solve for x
    x = 166,784,677,632.29/449,901.94
  6. Step 6: Final answer
    x = 370,713.40

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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.