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Finding the Fourth Proportional to 412,426.56, 618,869.44 and 222,883.20

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Solution

The fourth proportional to 412,426.56, 618,869.44 and 222,883.20 is: 334,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,426.56 : 618,869.44 = 222,883.20 : x
  2. Step 2: Convert to fraction form
    412,426.56/618,869.44 = 222,883.20/x
  3. Step 3: Cross multiply
    412,426.56x = 618,869.44 × 222,883.20
  4. Step 4: Simplify right side
    412,426.56x = 137,935,601,169.41
  5. Step 5: Solve for x
    x = 137,935,601,169.41/412,426.56
  6. Step 6: Final answer
    x = 334,448.88

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1.5x scale

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.