Finding the Fourth Proportional to 1,258,995.60, 1,737,414 and 686,035.68
Calculator
Solution
The fourth proportional to 1,258,995.60, 1,737,414 and 686,035.68 is: 946,729.28
Step by Step Solution
- Step 1: Write the proportion equation
1,258,995.60 : 1,737,414 = 686,035.68 : x - Step 2: Convert to fraction form
1,258,995.60/1,737,414 = 686,035.68/x - Step 3: Cross multiply
1,258,995.60x = 1,737,414 × 686,035.68 - Step 4: Simplify right side
1,258,995.60x = 1,191,927,994,931.52 - Step 5: Solve for x
x = 1,191,927,994,931.52/1,258,995.60 - Step 6: Final answer
x = 946,729.28
Related Problems
Find fourth proportional to 629,497.80, 868,707 and 343,017.84
Half scale
Find fourth proportional to 2,517,991.20, 3,474,828 and 1,372,071.36
Double scale
Find fourth proportional to 1,258,996.60, 1,737,415.38 and 686,036.68
Similar ratio
Find fourth proportional to 1,888,493.40, 2,606,121 and 1,029,053.52
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.