Finding the Fourth Proportional to 474,821.70, 712,232.55 and 142,397.70
Calculator
Solution
The fourth proportional to 474,821.70, 712,232.55 and 142,397.70 is: 213,596.55
Step by Step Solution
- Step 1: Write the proportion equation
474,821.70 : 712,232.55 = 142,397.70 : x - Step 2: Convert to fraction form
474,821.70/712,232.55 = 142,397.70/x - Step 3: Cross multiply
474,821.70x = 712,232.55 × 142,397.70 - Step 4: Simplify right side
474,821.70x = 101,420,276,985.14 - Step 5: Solve for x
x = 101,420,276,985.14/474,821.70 - Step 6: Final answer
x = 213,596.55
Related Problems
Find fourth proportional to 237,410.85, 356,116.28 and 71,198.85
Half scale
Find fourth proportional to 949,643.40, 1,424,465.10 and 284,795.40
Double scale
Find fourth proportional to 474,822.70, 712,234.05 and 142,398.70
Similar ratio
Find fourth proportional to 712,232.55, 1,068,348.83 and 213,596.55
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.