Finding the Fourth Proportional to 949,668.97, 1,310,736.98 and 643,843.68
Calculator
Solution
The fourth proportional to 949,668.97, 1,310,736.98 and 643,843.68 is: 888,635.67
Step by Step Solution
- Step 1: Write the proportion equation
949,668.97 : 1,310,736.98 = 643,843.68 : x - Step 2: Convert to fraction form
949,668.97/1,310,736.98 = 643,843.68/x - Step 3: Cross multiply
949,668.97x = 1,310,736.98 × 643,843.68 - Step 4: Simplify right side
949,668.97x = 843,909,714,219.23 - Step 5: Solve for x
x = 843,909,714,219.23/949,668.97 - Step 6: Final answer
x = 888,635.67
Related Problems
Find fourth proportional to 474,834.48, 655,368.49 and 321,921.84
Half scale
Find fourth proportional to 1,899,337.93, 2,621,473.95 and 1,287,687.36
Double scale
Find fourth proportional to 949,669.97, 1,310,738.36 and 643,844.68
Similar ratio
Find fourth proportional to 1,424,503.45, 1,966,105.46 and 965,765.52
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.