Formatting Date to a specific Format converts the type String

Hi Guys

I am trying to get the following code work but its not working

=[Inventory PQI Date] <= RelativeDate(CurrentDate();70)

when i saw the Current Date values its coming like 1/7/15

however the values coming for [Inventory PQI Date] are like 01/07/2015,

probably thats the reason the above is not working .

Now when i want to format the Current Date to MM/dd/yyyy , it converts to that format but the type comes as String , if i put todate function on the top of Fromat date it bring back to the same old format