Finding the Fourth Proportional to 842,321.70, 1,263,919.95 and 369,054.90
Calculator
Solution
The fourth proportional to 842,321.70, 1,263,919.95 and 369,054.90 is: 553,773.99
Step by Step Solution
- Step 1: Write the proportion equation
842,321.70 : 1,263,919.95 = 369,054.90 : x - Step 2: Convert to fraction form
842,321.70/1,263,919.95 = 369,054.90/x - Step 3: Cross multiply
842,321.70x = 1,263,919.95 × 369,054.90 - Step 4: Simplify right side
842,321.70x = 466,455,850,755.26 - Step 5: Solve for x
x = 466,455,850,755.26/842,321.70 - Step 6: Final answer
x = 553,773.99
Related Problems
Find fourth proportional to 421,160.85, 631,959.98 and 184,527.45
Half scale
Find fourth proportional to 1,684,643.40, 2,527,839.90 and 738,109.80
Double scale
Find fourth proportional to 842,322.70, 1,263,921.45 and 369,055.90
Similar ratio
Find fourth proportional to 1,263,482.55, 1,895,879.93 and 553,582.35
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.