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Finding the Fourth Proportional to 408,704.56, 563,996.88 and 227,423.28

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Solution

The fourth proportional to 408,704.56, 563,996.88 and 227,423.28 is: 313,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,704.56 : 563,996.88 = 227,423.28 : x
  2. Step 2: Convert to fraction form
    408,704.56/563,996.88 = 227,423.28/x
  3. Step 3: Cross multiply
    408,704.56x = 563,996.88 × 227,423.28
  4. Step 4: Simplify right side
    408,704.56x = 128,266,020,359.37
  5. Step 5: Solve for x
    x = 128,266,020,359.37/408,704.56
  6. Step 6: Final answer
    x = 313,835.55

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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.