Finding the Fourth Proportional to 484,341.20, 668,380.43 and 280,400.74
Calculator
Solution
The fourth proportional to 484,341.20, 668,380.43 and 280,400.74 is: 386,946.99
Step by Step Solution
- Step 1: Write the proportion equation
484,341.20 : 668,380.43 = 280,400.74 : x - Step 2: Convert to fraction form
484,341.20/668,380.43 = 280,400.74/x - Step 3: Cross multiply
484,341.20x = 668,380.43 × 280,400.74 - Step 4: Simplify right side
484,341.20x = 187,414,367,173.52 - Step 5: Solve for x
x = 187,414,367,173.52/484,341.20 - Step 6: Final answer
x = 386,946.99
Related Problems
Find fourth proportional to 242,170.60, 334,190.22 and 140,200.37
Half scale
Find fourth proportional to 968,682.40, 1,336,760.86 and 560,801.48
Double scale
Find fourth proportional to 484,342.20, 668,381.81 and 280,401.74
Similar ratio
Find fourth proportional to 726,511.80, 1,002,570.65 and 420,601.11
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.