Finding the Fourth Proportional to 900,427.68, 1,350,312.48 and 394,639.92
Calculator
Solution
The fourth proportional to 900,427.68, 1,350,312.48 and 394,639.92 is: 591,815.67
Step by Step Solution
- Step 1: Write the proportion equation
900,427.68 : 1,350,312.48 = 394,639.92 : x - Step 2: Convert to fraction form
900,427.68/1,350,312.48 = 394,639.92/x - Step 3: Cross multiply
900,427.68x = 1,350,312.48 × 394,639.92 - Step 4: Simplify right side
900,427.68x = 532,887,209,082.20 - Step 5: Solve for x
x = 532,887,209,082.20/900,427.68 - Step 6: Final answer
x = 591,815.67
Related Problems
Find fourth proportional to 450,213.84, 675,156.24 and 197,319.96
Half scale
Find fourth proportional to 1,800,855.36, 2,700,624.96 and 789,279.84
Double scale
Find fourth proportional to 900,428.68, 1,350,313.98 and 394,640.92
Similar ratio
Find fourth proportional to 1,350,641.52, 2,025,468.72 and 591,959.88
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.