Home / 481,580.64-664,586.17-290,557.13

Finding the Fourth Proportional to 481,580.64, 664,586.17 and 290,557.13

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Solution

The fourth proportional to 481,580.64, 664,586.17 and 290,557.13 is: 400,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,580.64 : 664,586.17 = 290,557.13 : x
  2. Step 2: Convert to fraction form
    481,580.64/664,586.17 = 290,557.13/x
  3. Step 3: Cross multiply
    481,580.64x = 664,586.17 × 290,557.13
  4. Step 4: Simplify right side
    481,580.64x = 193,100,246,143.57
  5. Step 5: Solve for x
    x = 193,100,246,143.57/481,580.64
  6. Step 6: Final answer
    x = 400,971.78

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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.