Finding the Fourth Proportional to 1,620,791.68, 2,236,724.40 and 1,048,828
Calculator
Solution
The fourth proportional to 1,620,791.68, 2,236,724.40 and 1,048,828 is: 1,447,403.27
Step by Step Solution
- Step 1: Write the proportion equation
1,620,791.68 : 2,236,724.40 = 1,048,828 : x - Step 2: Convert to fraction form
1,620,791.68/2,236,724.40 = 1,048,828/x - Step 3: Cross multiply
1,620,791.68x = 2,236,724.40 × 1,048,828 - Step 4: Simplify right side
1,620,791.68x = 2,345,939,179,003.20 - Step 5: Solve for x
x = 2,345,939,179,003.20/1,620,791.68 - Step 6: Final answer
x = 1,447,403.27
Related Problems
Find fourth proportional to 810,395.84, 1,118,362.20 and 524,414
Half scale
Find fourth proportional to 3,241,583.36, 4,473,448.80 and 2,097,656
Double scale
Find fourth proportional to 1,620,792.68, 2,236,725.78 and 1,048,829
Similar ratio
Find fourth proportional to 2,431,187.52, 3,355,086.60 and 1,573,242
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.