Geometric means

[Louise Johnson]

I think I have this one wrong.....

Question:
Determine two geometric means between 2/3 and 486

What I have:

a= 2/3
ar^3 =486

ar^3/a = 729

r=9

2/3(9)^1 =6
2/3(9)^2 =54

Please tell me I am somewhere close?
Thank you
Louise

 

[tkhunny]

Where's your confidence? When you get it right, enjoy it!

 

[Louise Johnson]

Miracles do happen! .. Just don't look at my first geometric sequence post.....whew...it was a stinker...LOL
Thank you for you help! (and encouragement)
louise