Finding the Fourth Proportional to 774,613.88, 1,068,928.10 and 430,442.42
Calculator
Solution
The fourth proportional to 774,613.88, 1,068,928.10 and 430,442.42 is: 593,988.83
Step by Step Solution
- Step 1: Write the proportion equation
774,613.88 : 1,068,928.10 = 430,442.42 : x - Step 2: Convert to fraction form
774,613.88/1,068,928.10 = 430,442.42/x - Step 3: Cross multiply
774,613.88x = 1,068,928.10 × 430,442.42 - Step 4: Simplify right side
774,613.88x = 460,111,996,295.79 - Step 5: Solve for x
x = 460,111,996,295.79/774,613.88 - Step 6: Final answer
x = 593,988.83
Related Problems
Find fourth proportional to 387,306.94, 534,464.05 and 215,221.21
Half scale
Find fourth proportional to 1,549,227.77, 2,137,856.20 and 860,884.84
Double scale
Find fourth proportional to 774,614.88, 1,068,929.48 and 430,443.42
Similar ratio
Find fourth proportional to 1,161,920.82, 1,603,392.15 and 645,663.63
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.