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Finding the Fourth Proportional to 437,388.39, 603,708.57 and 284,807.43

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Solution

The fourth proportional to 437,388.39, 603,708.57 and 284,807.43 is: 393,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,388.39 : 603,708.57 = 284,807.43 : x
  2. Step 2: Convert to fraction form
    437,388.39/603,708.57 = 284,807.43/x
  3. Step 3: Cross multiply
    437,388.39x = 603,708.57 × 284,807.43
  4. Step 4: Simplify right side
    437,388.39x = 171,940,686,290.68
  5. Step 5: Solve for x
    x = 171,940,686,290.68/437,388.39
  6. Step 6: Final answer
    x = 393,107.57

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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.