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Finding the Fourth Proportional to 400,127.56, 599,524.97 and 281,549.78

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Solution

The fourth proportional to 400,127.56, 599,524.97 and 281,549.78 is: 421,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,127.56 : 599,524.97 = 281,549.78 : x
  2. Step 2: Convert to fraction form
    400,127.56/599,524.97 = 281,549.78/x
  3. Step 3: Cross multiply
    400,127.56x = 599,524.97 × 281,549.78
  4. Step 4: Simplify right side
    400,127.56x = 168,796,120,410.38
  5. Step 5: Solve for x
    x = 168,796,120,410.38/400,127.56
  6. Step 6: Final answer
    x = 421,855.78

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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.