Finding the Fourth Proportional to 698,146.63, 963,446.21 and 392,235.91
Calculator
Solution
The fourth proportional to 698,146.63, 963,446.21 and 392,235.91 is: 541,287.72
Step by Step Solution
- Step 1: Write the proportion equation
698,146.63 : 963,446.21 = 392,235.91 : x - Step 2: Convert to fraction form
698,146.63/963,446.21 = 392,235.91/x - Step 3: Cross multiply
698,146.63x = 963,446.21 × 392,235.91 - Step 4: Simplify right side
698,146.63x = 377,898,199,487.38 - Step 5: Solve for x
x = 377,898,199,487.38/698,146.63 - Step 6: Final answer
x = 541,287.72
Related Problems
Find fourth proportional to 349,073.31, 481,723.11 and 196,117.95
Half scale
Find fourth proportional to 1,396,293.26, 1,926,892.43 and 784,471.82
Double scale
Find fourth proportional to 698,147.63, 963,447.59 and 392,236.91
Similar ratio
Find fourth proportional to 1,047,219.94, 1,445,169.32 and 588,353.86
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.