Finding the Fourth Proportional to 454,313.40, 626,720.67 and 311,210.70
Calculator
Solution
The fourth proportional to 454,313.40, 626,720.67 and 311,210.70 is: 429,311.96
Step by Step Solution
- Step 1: Write the proportion equation
454,313.40 : 626,720.67 = 311,210.70 : x - Step 2: Convert to fraction form
454,313.40/626,720.67 = 311,210.70/x - Step 3: Cross multiply
454,313.40x = 626,720.67 × 311,210.70 - Step 4: Simplify right side
454,313.40x = 195,042,178,415.17 - Step 5: Solve for x
x = 195,042,178,415.17/454,313.40 - Step 6: Final answer
x = 429,311.96
Related Problems
Find fourth proportional to 227,156.70, 313,360.34 and 155,605.35
Half scale
Find fourth proportional to 908,626.80, 1,253,441.34 and 622,421.40
Double scale
Find fourth proportional to 454,314.40, 626,722.05 and 311,211.70
Similar ratio
Find fourth proportional to 681,470.10, 940,081.01 and 466,816.05
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.