Finding the Fourth Proportional to 627,087.84, 865,392.63 and 355,212.18
Calculator
Solution
The fourth proportional to 627,087.84, 865,392.63 and 355,212.18 is: 490,199.27
Step by Step Solution
- Step 1: Write the proportion equation
627,087.84 : 865,392.63 = 355,212.18 : x - Step 2: Convert to fraction form
627,087.84/865,392.63 = 355,212.18/x - Step 3: Cross multiply
627,087.84x = 865,392.63 × 355,212.18 - Step 4: Simplify right side
627,087.84x = 307,398,002,658.23 - Step 5: Solve for x
x = 307,398,002,658.23/627,087.84 - Step 6: Final answer
x = 490,199.27
Related Problems
Find fourth proportional to 313,543.92, 432,696.32 and 177,606.09
Half scale
Find fourth proportional to 1,254,175.68, 1,730,785.26 and 710,424.36
Double scale
Find fourth proportional to 627,088.84, 865,394.01 and 355,213.18
Similar ratio
Find fourth proportional to 940,631.76, 1,298,088.95 and 532,818.27
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.