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Finding the Fourth Proportional to 668,609.69, 1,002,903.57 and 269,240.40

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Solution

The fourth proportional to 668,609.69, 1,002,903.57 and 269,240.40 is: 403,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,609.69 : 1,002,903.57 = 269,240.40 : x
  2. Step 2: Convert to fraction form
    668,609.69/1,002,903.57 = 269,240.40/x
  3. Step 3: Cross multiply
    668,609.69x = 1,002,903.57 × 269,240.40
  4. Step 4: Simplify right side
    668,609.69x = 270,022,158,348.23
  5. Step 5: Solve for x
    x = 270,022,158,348.23/668,609.69
  6. Step 6: Final answer
    x = 403,856.19

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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.