Home / 388,619.80-582,929.70-222,424.60

Finding the Fourth Proportional to 388,619.80, 582,929.70 and 222,424.60

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Solution

The fourth proportional to 388,619.80, 582,929.70 and 222,424.60 is: 333,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,619.80 : 582,929.70 = 222,424.60 : x
  2. Step 2: Convert to fraction form
    388,619.80/582,929.70 = 222,424.60/x
  3. Step 3: Cross multiply
    388,619.80x = 582,929.70 × 222,424.60
  4. Step 4: Simplify right side
    388,619.80x = 129,657,905,350.62
  5. Step 5: Solve for x
    x = 129,657,905,350.62/388,619.80
  6. Step 6: Final answer
    x = 333,636.90

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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.