Finding the Fourth Proportional to 1,288,187.79, 1,929,338.58 and 614,742
Calculator
Solution
The fourth proportional to 1,288,187.79, 1,929,338.58 and 614,742 is: 920,708.51
Step by Step Solution
- Step 1: Write the proportion equation
1,288,187.79 : 1,929,338.58 = 614,742 : x - Step 2: Convert to fraction form
1,288,187.79/1,929,338.58 = 614,742/x - Step 3: Cross multiply
1,288,187.79x = 1,929,338.58 × 614,742 - Step 4: Simplify right side
1,288,187.79x = 1,186,045,457,346.36 - Step 5: Solve for x
x = 1,186,045,457,346.36/1,288,187.79 - Step 6: Final answer
x = 920,708.51
Related Problems
Find fourth proportional to 644,093.90, 964,669.29 and 307,371
Half scale
Find fourth proportional to 2,576,375.58, 3,858,677.16 and 1,229,484
Double scale
Find fourth proportional to 1,288,188.79, 1,929,340.08 and 614,743
Similar ratio
Find fourth proportional to 1,932,281.69, 2,894,007.87 and 922,113
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.