Finding the Fourth Proportional to 957,339.95, 1,321,106.38 and 521,771.09
Calculator
Solution
The fourth proportional to 957,339.95, 1,321,106.38 and 521,771.09 is: 720,031.70
Step by Step Solution
- Step 1: Write the proportion equation
957,339.95 : 1,321,106.38 = 521,771.09 : x - Step 2: Convert to fraction form
957,339.95/1,321,106.38 = 521,771.09/x - Step 3: Cross multiply
957,339.95x = 1,321,106.38 × 521,771.09 - Step 4: Simplify right side
957,339.95x = 689,315,107,988.60 - Step 5: Solve for x
x = 689,315,107,988.60/957,339.95 - Step 6: Final answer
x = 720,031.70
Related Problems
Find fourth proportional to 478,669.97, 660,553.19 and 260,885.54
Half scale
Find fourth proportional to 1,914,679.89, 2,642,212.76 and 1,043,542.17
Double scale
Find fourth proportional to 957,340.95, 1,321,107.76 and 521,772.09
Similar ratio
Find fourth proportional to 1,436,009.92, 1,981,659.57 and 782,656.63
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.