Finding the Fourth Proportional to 963,149, 1,438,866.21 and 623,421.96
Calculator
Solution
The fourth proportional to 963,149, 1,438,866.21 and 623,421.96 is: 931,341.66
Step by Step Solution
- Step 1: Write the proportion equation
963,149 : 1,438,866.21 = 623,421.96 : x - Step 2: Convert to fraction form
963,149/1,438,866.21 = 623,421.96/x - Step 3: Cross multiply
963,149x = 1,438,866.21 × 623,421.96 - Step 4: Simplify right side
963,149x = 897,020,792,815.97 - Step 5: Solve for x
x = 897,020,792,815.97/963,149 - Step 6: Final answer
x = 931,341.66
Related Problems
Find fourth proportional to 481,574.50, 719,433.11 and 311,710.98
Half scale
Find fourth proportional to 1,926,298, 2,877,732.42 and 1,246,843.92
Double scale
Find fourth proportional to 963,150, 1,438,867.70 and 623,422.96
Similar ratio
Find fourth proportional to 1,444,723.50, 2,158,299.32 and 935,132.94
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.