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Finding the Fourth Proportional to 400,107.55, 599,494.97 and 281,529.78

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Solution

The fourth proportional to 400,107.55, 599,494.97 and 281,529.78 is: 421,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,107.55 : 599,494.97 = 281,529.78 : x
  2. Step 2: Convert to fraction form
    400,107.55/599,494.97 = 281,529.78/x
  3. Step 3: Cross multiply
    400,107.55x = 599,494.97 × 281,529.78
  4. Step 4: Simplify right side
    400,107.55x = 168,775,685,470.93
  5. Step 5: Solve for x
    x = 168,775,685,470.93/400,107.55
  6. Step 6: Final answer
    x = 421,825.80

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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.