Finding the Fourth Proportional to 581,916.97, 802,781.66 and 420,516.37
Calculator
Solution
The fourth proportional to 581,916.97, 802,781.66 and 420,516.37 is: 580,121.99
Step by Step Solution
- Step 1: Write the proportion equation
581,916.97 : 802,781.66 = 420,516.37 : x - Step 2: Convert to fraction form
581,916.97/802,781.66 = 420,516.37/x - Step 3: Cross multiply
581,916.97x = 802,781.66 × 420,516.37 - Step 4: Simplify right side
581,916.97x = 337,582,831,620.54 - Step 5: Solve for x
x = 337,582,831,620.54/581,916.97 - Step 6: Final answer
x = 580,121.99
Related Problems
Find fourth proportional to 290,958.49, 401,390.83 and 210,258.19
Half scale
Find fourth proportional to 1,163,833.94, 1,605,563.33 and 841,032.74
Double scale
Find fourth proportional to 581,917.97, 802,783.04 and 420,517.37
Similar ratio
Find fourth proportional to 872,875.46, 1,204,172.49 and 630,774.56
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.