Finding the Fourth Proportional to 581,909.42, 802,579.05 and 398,256.62
Calculator
Solution
The fourth proportional to 581,909.42, 802,579.05 and 398,256.62 is: 549,282.09
Step by Step Solution
- Step 1: Write the proportion equation
581,909.42 : 802,579.05 = 398,256.62 : x - Step 2: Convert to fraction form
581,909.42/802,579.05 = 398,256.62/x - Step 3: Cross multiply
581,909.42x = 802,579.05 × 398,256.62 - Step 4: Simplify right side
581,909.42x = 319,632,419,735.81 - Step 5: Solve for x
x = 319,632,419,735.81/581,909.42 - Step 6: Final answer
x = 549,282.09
Related Problems
Find fourth proportional to 290,954.71, 401,289.53 and 199,128.31
Half scale
Find fourth proportional to 1,163,818.84, 1,605,158.10 and 796,513.24
Double scale
Find fourth proportional to 581,910.42, 802,580.43 and 398,257.62
Similar ratio
Find fourth proportional to 872,864.13, 1,203,868.58 and 597,384.93
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.