Finding the Fourth Proportional to 851,503.41, 1,276,783.98 and 338,649.18
Calculator
Solution
The fourth proportional to 851,503.41, 1,276,783.98 and 338,649.18 is: 507,786.40
Step by Step Solution
- Step 1: Write the proportion equation
851,503.41 : 1,276,783.98 = 338,649.18 : x - Step 2: Convert to fraction form
851,503.41/1,276,783.98 = 338,649.18/x - Step 3: Cross multiply
851,503.41x = 1,276,783.98 × 338,649.18 - Step 4: Simplify right side
851,503.41x = 432,381,847,864.14 - Step 5: Solve for x
x = 432,381,847,864.14/851,503.41 - Step 6: Final answer
x = 507,786.40
Related Problems
Find fourth proportional to 425,751.71, 638,391.99 and 169,324.59
Half scale
Find fourth proportional to 1,703,006.82, 2,553,567.96 and 677,298.36
Double scale
Find fourth proportional to 851,504.41, 1,276,785.48 and 338,650.18
Similar ratio
Find fourth proportional to 1,277,255.12, 1,915,175.97 and 507,973.77
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.