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Finding the Fourth Proportional to 404,320.80, 606,481.20 and 269,601.60

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Solution

The fourth proportional to 404,320.80, 606,481.20 and 269,601.60 is: 404,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,320.80 : 606,481.20 = 269,601.60 : x
  2. Step 2: Convert to fraction form
    404,320.80/606,481.20 = 269,601.60/x
  3. Step 3: Cross multiply
    404,320.80x = 606,481.20 × 269,601.60
  4. Step 4: Simplify right side
    404,320.80x = 163,508,301,889.92
  5. Step 5: Solve for x
    x = 163,508,301,889.92/404,320.80
  6. Step 6: Final answer
    x = 404,402.40

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1.5x scale

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.