Yes, 1.0227 is a rational number. A rational number is defined as any number that can be expressed as the quotient or fraction of two integers, where the numerator is an integer and the denominator is a non-zero integer.
In this case, 1.0227 can be expressed as 10227/10000. Here, both 10227 and 10000 are integers, and since 10000 is not zero, this confirms that 1.0227 fits the definition of a rational number.
Furthermore, rational numbers can be either positive or negative and can also be whole numbers, fractions, or decimals. Since 1.0227 is a decimal that can be converted into a fraction, it is categorized as a rational number.