Finding the Fourth Proportional to 1,608,391.14, 2,220,078 and 1,035,431.31
Calculator
Solution
The fourth proportional to 1,608,391.14, 2,220,078 and 1,035,431.31 is: 1,429,215.95
Step by Step Solution
- Step 1: Write the proportion equation
1,608,391.14 : 2,220,078 = 1,035,431.31 : x - Step 2: Convert to fraction form
1,608,391.14/2,220,078 = 1,035,431.31/x - Step 3: Cross multiply
1,608,391.14x = 2,220,078 × 1,035,431.31 - Step 4: Simplify right side
1,608,391.14x = 2,298,738,271,842.18 - Step 5: Solve for x
x = 2,298,738,271,842.18/1,608,391.14 - Step 6: Final answer
x = 1,429,215.95
Related Problems
Find fourth proportional to 804,195.57, 1,110,039 and 517,715.66
Half scale
Find fourth proportional to 3,216,782.28, 4,440,156 and 2,070,862.62
Double scale
Find fourth proportional to 1,608,392.14, 2,220,079.38 and 1,035,432.31
Similar ratio
Find fourth proportional to 2,412,586.71, 3,330,117 and 1,553,146.97
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.