Finding the Fourth Proportional to 863,571.65, 1,292,661.86 and 636,123.68
Calculator
Solution
The fourth proportional to 863,571.65, 1,292,661.86 and 636,123.68 is: 952,199.88
Step by Step Solution
- Step 1: Write the proportion equation
863,571.65 : 1,292,661.86 = 636,123.68 : x - Step 2: Convert to fraction form
863,571.65/1,292,661.86 = 636,123.68/x - Step 3: Cross multiply
863,571.65x = 1,292,661.86 × 636,123.68 - Step 4: Simplify right side
863,571.65x = 822,292,814,582.40 - Step 5: Solve for x
x = 822,292,814,582.40/863,571.65 - Step 6: Final answer
x = 952,199.88
Related Problems
Find fourth proportional to 431,785.82, 646,330.93 and 318,061.84
Half scale
Find fourth proportional to 1,727,143.29, 2,585,323.71 and 1,272,247.36
Double scale
Find fourth proportional to 863,572.65, 1,292,663.35 and 636,124.68
Similar ratio
Find fourth proportional to 1,295,357.47, 1,938,992.78 and 954,185.52
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.