Finding the Fourth Proportional to 825,581.79, 1,139,427.41 and 503,478.74
Calculator
Solution
The fourth proportional to 825,581.79, 1,139,427.41 and 503,478.74 is: 694,876.61
Step by Step Solution
- Step 1: Write the proportion equation
825,581.79 : 1,139,427.41 = 503,478.74 : x - Step 2: Convert to fraction form
825,581.79/1,139,427.41 = 503,478.74/x - Step 3: Cross multiply
825,581.79x = 1,139,427.41 × 503,478.74 - Step 4: Simplify right side
825,581.79x = 573,677,476,708.26 - Step 5: Solve for x
x = 573,677,476,708.26/825,581.79 - Step 6: Final answer
x = 694,876.61
Related Problems
Find fourth proportional to 412,790.90, 569,713.71 and 251,739.37
Half scale
Find fourth proportional to 1,651,163.58, 2,278,854.82 and 1,006,957.48
Double scale
Find fourth proportional to 825,582.79, 1,139,428.79 and 503,479.74
Similar ratio
Find fourth proportional to 1,238,372.69, 1,709,141.12 and 755,218.11
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.