Finding the Fourth Proportional to 768,907.50, 1,060,879.28 and 442,202.70
Calculator
Solution
The fourth proportional to 768,907.50, 1,060,879.28 and 442,202.70 is: 610,117.18
Step by Step Solution
- Step 1: Write the proportion equation
768,907.50 : 1,060,879.28 = 442,202.70 : x - Step 2: Convert to fraction form
768,907.50/1,060,879.28 = 442,202.70/x - Step 3: Cross multiply
768,907.50x = 1,060,879.28 × 442,202.70 - Step 4: Simplify right side
768,907.50x = 469,123,674,474.65 - Step 5: Solve for x
x = 469,123,674,474.65/768,907.50 - Step 6: Final answer
x = 610,117.18
Related Problems
Find fourth proportional to 384,453.75, 530,439.64 and 221,101.35
Half scale
Find fourth proportional to 1,537,814.99, 2,121,758.55 and 884,405.39
Double scale
Find fourth proportional to 768,908.50, 1,060,880.65 and 442,203.70
Similar ratio
Find fourth proportional to 1,153,361.24, 1,591,318.91 and 663,304.04
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.