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Finding the Fourth Proportional to 668,869.40, 1,003,336.92 and 269,456

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Solution

The fourth proportional to 668,869.40, 1,003,336.92 and 269,456 is: 404,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,869.40 : 1,003,336.92 = 269,456 : x
  2. Step 2: Convert to fraction form
    668,869.40/1,003,336.92 = 269,456/x
  3. Step 3: Cross multiply
    668,869.40x = 1,003,336.92 × 269,456
  4. Step 4: Simplify right side
    668,869.40x = 270,355,153,115.52
  5. Step 5: Solve for x
    x = 270,355,153,115.52/668,869.40
  6. Step 6: Final answer
    x = 404,197.22

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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.