Finding the Fourth Proportional to 493,203.17, 680,639.69 and 278,350.74
Calculator
Solution
The fourth proportional to 493,203.17, 680,639.69 and 278,350.74 is: 384,134.92
Step by Step Solution
- Step 1: Write the proportion equation
493,203.17 : 680,639.69 = 278,350.74 : x - Step 2: Convert to fraction form
493,203.17/680,639.69 = 278,350.74/x - Step 3: Cross multiply
493,203.17x = 680,639.69 × 278,350.74 - Step 4: Simplify right side
493,203.17x = 189,456,562,080.75 - Step 5: Solve for x
x = 189,456,562,080.75/493,203.17 - Step 6: Final answer
x = 384,134.92
Related Problems
Find fourth proportional to 246,601.59, 340,319.85 and 139,175.37
Half scale
Find fourth proportional to 986,406.35, 1,361,279.39 and 556,701.48
Double scale
Find fourth proportional to 493,204.17, 680,641.07 and 278,351.74
Similar ratio
Find fourth proportional to 739,804.76, 1,020,959.54 and 417,526.11
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.