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Finding the Fourth Proportional to 481,600.89, 664,614.11 and 290,577.38

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Solution

The fourth proportional to 481,600.89, 664,614.11 and 290,577.38 is: 400,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,600.89 : 664,614.11 = 290,577.38 : x
  2. Step 2: Convert to fraction form
    481,600.89/664,614.11 = 290,577.38/x
  3. Step 3: Cross multiply
    481,600.89x = 664,614.11 × 290,577.38
  4. Step 4: Simplify right side
    481,600.89x = 193,121,824,198.21
  5. Step 5: Solve for x
    x = 193,121,824,198.21/481,600.89
  6. Step 6: Final answer
    x = 400,999.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.