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Finding the Fourth Proportional to 481,576.58, 664,580.56 and 290,553.06

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Solution

The fourth proportional to 481,576.58, 664,580.56 and 290,553.06 is: 400,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,576.58 : 664,580.56 = 290,553.06 : x
  2. Step 2: Convert to fraction form
    481,576.58/664,580.56 = 290,553.06/x
  3. Step 3: Cross multiply
    481,576.58x = 664,580.56 × 290,553.06
  4. Step 4: Simplify right side
    481,576.58x = 193,095,915,324.51
  5. Step 5: Solve for x
    x = 193,095,915,324.51/481,576.58
  6. Step 6: Final answer
    x = 400,966.17

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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.