Finding the Fourth Proportional to 459,178.96, 688,781.40 and 126,754.96
Calculator
Solution
The fourth proportional to 459,178.96, 688,781.40 and 126,754.96 is: 190,136.02
Step by Step Solution
- Step 1: Write the proportion equation
459,178.96 : 688,781.40 = 126,754.96 : x - Step 2: Convert to fraction form
459,178.96/688,781.40 = 126,754.96/x - Step 3: Cross multiply
459,178.96x = 688,781.40 × 126,754.96 - Step 4: Simplify right side
459,178.96x = 87,306,458,805.74 - Step 5: Solve for x
x = 87,306,458,805.74/459,178.96 - Step 6: Final answer
x = 190,136.02
Related Problems
Find fourth proportional to 229,589.48, 344,390.70 and 63,377.48
Half scale
Find fourth proportional to 918,357.92, 1,377,562.80 and 253,509.92
Double scale
Find fourth proportional to 459,179.96, 688,782.90 and 126,755.96
Similar ratio
Find fourth proportional to 688,768.44, 1,033,172.10 and 190,132.44
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.