Finding the Fourth Proportional to 679,739.19, 938,021.27 and 373,815.48
Calculator
Solution
The fourth proportional to 679,739.19, 938,021.27 and 373,815.48 is: 515,855.02
Step by Step Solution
- Step 1: Write the proportion equation
679,739.19 : 938,021.27 = 373,815.48 : x - Step 2: Convert to fraction form
679,739.19/938,021.27 = 373,815.48/x - Step 3: Cross multiply
679,739.19x = 938,021.27 × 373,815.48 - Step 4: Simplify right side
679,739.19x = 350,646,872,933.97 - Step 5: Solve for x
x = 350,646,872,933.97/679,739.19 - Step 6: Final answer
x = 515,855.02
Related Problems
Find fourth proportional to 339,869.60, 469,010.64 and 186,907.74
Half scale
Find fourth proportional to 1,359,478.38, 1,876,042.54 and 747,630.96
Double scale
Find fourth proportional to 679,740.19, 938,022.65 and 373,816.48
Similar ratio
Find fourth proportional to 1,019,608.79, 1,407,031.91 and 560,723.22
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.