Finding the Fourth Proportional to 531,902.18, 734,023.40 and 290,183.02
Calculator
Solution
The fourth proportional to 531,902.18, 734,023.40 and 290,183.02 is: 400,451.69
Step by Step Solution
- Step 1: Write the proportion equation
531,902.18 : 734,023.40 = 290,183.02 : x - Step 2: Convert to fraction form
531,902.18/734,023.40 = 290,183.02/x - Step 3: Cross multiply
531,902.18x = 734,023.40 × 290,183.02 - Step 4: Simplify right side
531,902.18x = 213,001,126,962.67 - Step 5: Solve for x
x = 213,001,126,962.67/531,902.18 - Step 6: Final answer
x = 400,451.69
Related Problems
Find fourth proportional to 265,951.09, 367,011.70 and 145,091.51
Half scale
Find fourth proportional to 1,063,804.36, 1,468,046.80 and 580,366.04
Double scale
Find fourth proportional to 531,903.18, 734,024.78 and 290,184.02
Similar ratio
Find fourth proportional to 797,853.27, 1,101,035.10 and 435,274.53
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.