Finding the Fourth Proportional to 370,518.84, 511,033.92 and 318,923.75
Calculator
Solution
The fourth proportional to 370,518.84, 511,033.92 and 318,923.75 is: 439,871.98
Step by Step Solution
- Step 1: Write the proportion equation
370,518.84 : 511,033.92 = 318,923.75 : x - Step 2: Convert to fraction form
370,518.84/511,033.92 = 318,923.75/x - Step 3: Cross multiply
370,518.84x = 511,033.92 × 318,923.75 - Step 4: Simplify right side
370,518.84x = 162,980,854,143.60 - Step 5: Solve for x
x = 162,980,854,143.60/370,518.84 - Step 6: Final answer
x = 439,871.98
Related Problems
Find fourth proportional to 185,259.42, 255,516.96 and 159,461.88
Half scale
Find fourth proportional to 741,037.68, 1,022,067.84 and 637,847.50
Double scale
Find fourth proportional to 370,519.84, 511,035.30 and 318,924.75
Similar ratio
Find fourth proportional to 555,778.26, 766,550.88 and 478,385.63
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.