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Finding the Fourth Proportional to 449,901.65, 620,871.66 and 268,629.43

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Solution

The fourth proportional to 449,901.65, 620,871.66 and 268,629.43 is: 370,713.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,901.65 : 620,871.66 = 268,629.43 : x
  2. Step 2: Convert to fraction form
    449,901.65/620,871.66 = 268,629.43/x
  3. Step 3: Cross multiply
    449,901.65x = 620,871.66 × 268,629.43
  4. Step 4: Simplify right side
    449,901.65x = 166,784,398,066.01
  5. Step 5: Solve for x
    x = 166,784,398,066.01/449,901.65
  6. Step 6: Final answer
    x = 370,713.01

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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.