Finding the Fourth Proportional to 1,357,512.70, 2,036,712 and 647,448.49
Calculator
Solution
The fourth proportional to 1,357,512.70, 2,036,712 and 647,448.49 is: 971,383.99
Step by Step Solution
- Step 1: Write the proportion equation
1,357,512.70 : 2,036,712 = 647,448.49 : x - Step 2: Convert to fraction form
1,357,512.70/2,036,712 = 647,448.49/x - Step 3: Cross multiply
1,357,512.70x = 2,036,712 × 647,448.49 - Step 4: Simplify right side
1,357,512.70x = 1,318,666,108,964.88 - Step 5: Solve for x
x = 1,318,666,108,964.88/1,357,512.70 - Step 6: Final answer
x = 971,383.99
Related Problems
Find fourth proportional to 678,756.35, 1,018,356 and 323,724.25
Half scale
Find fourth proportional to 2,715,025.40, 4,073,424 and 1,294,896.98
Double scale
Find fourth proportional to 1,357,513.70, 2,036,713.50 and 647,449.49
Similar ratio
Find fourth proportional to 2,036,269.05, 3,055,068 and 971,172.74
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.