Home / 388,645.73-582,913.24-122,399.33

Finding the Fourth Proportional to 388,645.73, 582,913.24 and 122,399.33

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Solution

The fourth proportional to 388,645.73, 582,913.24 and 122,399.33 is: 183,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,645.73 : 582,913.24 = 122,399.33 : x
  2. Step 2: Convert to fraction form
    388,645.73/582,913.24 = 122,399.33/x
  3. Step 3: Cross multiply
    388,645.73x = 582,913.24 × 122,399.33
  4. Step 4: Simplify right side
    388,645.73x = 71,348,186,803.56
  5. Step 5: Solve for x
    x = 71,348,186,803.56/388,645.73
  6. Step 6: Final answer
    x = 183,581.55

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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.