Finding the Fourth Proportional to 634,128.93, 875,131.45 and 347,661.09
Calculator
Solution
The fourth proportional to 634,128.93, 875,131.45 and 347,661.09 is: 479,790.68
Step by Step Solution
- Step 1: Write the proportion equation
634,128.93 : 875,131.45 = 347,661.09 : x - Step 2: Convert to fraction form
634,128.93/875,131.45 = 347,661.09/x - Step 3: Cross multiply
634,128.93x = 875,131.45 × 347,661.09 - Step 4: Simplify right side
634,128.93x = 304,249,152,931.13 - Step 5: Solve for x
x = 304,249,152,931.13/634,128.93 - Step 6: Final answer
x = 479,790.68
Related Problems
Find fourth proportional to 317,064.47, 437,565.72 and 173,830.55
Half scale
Find fourth proportional to 1,268,257.86, 1,750,262.90 and 695,322.18
Double scale
Find fourth proportional to 634,129.93, 875,132.83 and 347,662.09
Similar ratio
Find fourth proportional to 951,193.40, 1,312,697.17 and 521,491.64
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.