Finding the Fourth Proportional to 613,422.69, 920,321.79 and 314,115.12
Calculator
Solution
The fourth proportional to 613,422.69, 920,321.79 and 314,115.12 is: 471,268.82
Step by Step Solution
- Step 1: Write the proportion equation
613,422.69 : 920,321.79 = 314,115.12 : x - Step 2: Convert to fraction form
613,422.69/920,321.79 = 314,115.12/x - Step 3: Cross multiply
613,422.69x = 920,321.79 × 314,115.12 - Step 4: Simplify right side
613,422.69x = 289,086,989,504.47 - Step 5: Solve for x
x = 289,086,989,504.47/613,422.69 - Step 6: Final answer
x = 471,268.82
Related Problems
Find fourth proportional to 306,711.35, 460,160.90 and 157,057.56
Half scale
Find fourth proportional to 1,226,845.38, 1,840,643.58 and 628,230.24
Double scale
Find fourth proportional to 613,423.69, 920,323.29 and 314,116.12
Similar ratio
Find fourth proportional to 920,134.04, 1,380,482.69 and 471,172.68
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.