Finding the Fourth Proportional to 748,815.60, 1,122,591.60 and 349,245.84
Calculator
Solution
The fourth proportional to 748,815.60, 1,122,591.60 and 349,245.84 is: 523,574.09
Step by Step Solution
- Step 1: Write the proportion equation
748,815.60 : 1,122,591.60 = 349,245.84 : x - Step 2: Convert to fraction form
748,815.60/1,122,591.60 = 349,245.84/x - Step 3: Cross multiply
748,815.60x = 1,122,591.60 × 349,245.84 - Step 4: Simplify right side
748,815.60x = 392,060,446,318.94 - Step 5: Solve for x
x = 392,060,446,318.94/748,815.60 - Step 6: Final answer
x = 523,574.09
Related Problems
Find fourth proportional to 374,407.80, 561,295.80 and 174,622.92
Half scale
Find fourth proportional to 1,497,631.20, 2,245,183.20 and 698,491.68
Double scale
Find fourth proportional to 748,816.60, 1,122,593.10 and 349,246.84
Similar ratio
Find fourth proportional to 1,123,223.40, 1,683,887.40 and 523,868.76
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.