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Finding the Fourth Proportional to 400,637.91, 601,004.32 and 250,890.57

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Solution

The fourth proportional to 400,637.91, 601,004.32 and 250,890.57 is: 376,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,637.91 : 601,004.32 = 250,890.57 : x
  2. Step 2: Convert to fraction form
    400,637.91/601,004.32 = 250,890.57/x
  3. Step 3: Cross multiply
    400,637.91x = 601,004.32 × 250,890.57
  4. Step 4: Simplify right side
    400,637.91x = 150,786,317,292.55
  5. Step 5: Solve for x
    x = 150,786,317,292.55/400,637.91
  6. Step 6: Final answer
    x = 376,365.58

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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.