Finding the Fourth Proportional to 426,474.64, 638,323.14 and 314,110.60
Calculator
Solution
The fourth proportional to 426,474.64, 638,323.14 and 314,110.60 is: 470,142.99
Step by Step Solution
- Step 1: Write the proportion equation
426,474.64 : 638,323.14 = 314,110.60 : x - Step 2: Convert to fraction form
426,474.64/638,323.14 = 314,110.60/x - Step 3: Cross multiply
426,474.64x = 638,323.14 × 314,110.60 - Step 4: Simplify right side
426,474.64x = 200,504,064,499.28 - Step 5: Solve for x
x = 200,504,064,499.28/426,474.64 - Step 6: Final answer
x = 470,142.99
Related Problems
Find fourth proportional to 213,237.32, 319,161.57 and 157,055.30
Half scale
Find fourth proportional to 852,949.28, 1,276,646.28 and 628,221.20
Double scale
Find fourth proportional to 426,475.64, 638,324.64 and 314,111.60
Similar ratio
Find fourth proportional to 639,711.96, 957,484.71 and 471,165.90
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.