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Finding the Fourth Proportional to 437,540.80, 603,855 and 276,388.08

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Solution

The fourth proportional to 437,540.80, 603,855 and 276,388.08 is: 381,446.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,540.80 : 603,855 = 276,388.08 : x
  2. Step 2: Convert to fraction form
    437,540.80/603,855 = 276,388.08/x
  3. Step 3: Cross multiply
    437,540.80x = 603,855 × 276,388.08
  4. Step 4: Simplify right side
    437,540.80x = 166,898,324,048.40
  5. Step 5: Solve for x
    x = 166,898,324,048.40/437,540.80
  6. Step 6: Final answer
    x = 381,446.31

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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.