Home / 481,001.26-664,174.11-309,004.64

Finding the Fourth Proportional to 481,001.26, 664,174.11 and 309,004.64

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Solution

The fourth proportional to 481,001.26, 664,174.11 and 309,004.64 is: 426,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,001.26 : 664,174.11 = 309,004.64 : x
  2. Step 2: Convert to fraction form
    481,001.26/664,174.11 = 309,004.64/x
  3. Step 3: Cross multiply
    481,001.26x = 664,174.11 × 309,004.64
  4. Step 4: Simplify right side
    481,001.26x = 205,232,881,757.87
  5. Step 5: Solve for x
    x = 205,232,881,757.87/481,001.26
  6. Step 6: Final answer
    x = 426,678.47

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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.