Finding the Fourth Proportional to 1,268,215.96, 1,902,390.84 and 321,594.88
Calculator
Solution
The fourth proportional to 1,268,215.96, 1,902,390.84 and 321,594.88 is: 482,409.28
Step by Step Solution
- Step 1: Write the proportion equation
1,268,215.96 : 1,902,390.84 = 321,594.88 : x - Step 2: Convert to fraction form
1,268,215.96/1,902,390.84 = 321,594.88/x - Step 3: Cross multiply
1,268,215.96x = 1,902,390.84 × 321,594.88 - Step 4: Simplify right side
1,268,215.96x = 611,799,153,902.90 - Step 5: Solve for x
x = 611,799,153,902.90/1,268,215.96 - Step 6: Final answer
x = 482,409.28
Related Problems
Find fourth proportional to 634,107.98, 951,195.42 and 160,797.44
Half scale
Find fourth proportional to 2,536,431.92, 3,804,781.68 and 643,189.76
Double scale
Find fourth proportional to 1,268,216.96, 1,902,392.34 and 321,595.88
Similar ratio
Find fourth proportional to 1,902,323.94, 2,853,586.26 and 482,392.32
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.