Step 1: Understanding the golden proportion.
The golden ratio, also known as the divine proportion, is a mathematical ratio that occurs frequently in nature and art. It is approximately equal to 1.618.
Step 2: Explanation.
The golden ratio is often denoted as "a:b = 1:1.618". This ratio is used in design, art, and architecture due to its aesthetically pleasing properties.
Step 3: Conclusion.
Thus, the correct ratio for the golden proportion is 1:1.618.