Finding the Fourth Proportional to 752,612.88, 1,128,327.48 and 515,236.08
Calculator
Solution
The fourth proportional to 752,612.88, 1,128,327.48 and 515,236.08 is: 772,448.95
Step by Step Solution
- Step 1: Write the proportion equation
752,612.88 : 1,128,327.48 = 515,236.08 : x - Step 2: Convert to fraction form
752,612.88/1,128,327.48 = 515,236.08/x - Step 3: Cross multiply
752,612.88x = 1,128,327.48 × 515,236.08 - Step 4: Simplify right side
752,612.88x = 581,355,027,751.48 - Step 5: Solve for x
x = 581,355,027,751.48/752,612.88 - Step 6: Final answer
x = 772,448.95
Related Problems
Find fourth proportional to 376,306.44, 564,163.74 and 257,618.04
Half scale
Find fourth proportional to 1,505,225.76, 2,256,654.96 and 1,030,472.16
Double scale
Find fourth proportional to 752,613.88, 1,128,328.98 and 515,237.08
Similar ratio
Find fourth proportional to 1,128,919.32, 1,692,491.22 and 772,854.12
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.