Finding the Fourth Proportional to 901,701.20, 1,245,643.80 and 720,174.80
Calculator
Solution
The fourth proportional to 901,701.20, 1,245,643.80 and 720,174.80 is: 994,876.43
Step by Step Solution
- Step 1: Write the proportion equation
901,701.20 : 1,245,643.80 = 720,174.80 : x - Step 2: Convert to fraction form
901,701.20/1,245,643.80 = 720,174.80/x - Step 3: Cross multiply
901,701.20x = 1,245,643.80 × 720,174.80 - Step 4: Simplify right side
901,701.20x = 897,081,274,536.24 - Step 5: Solve for x
x = 897,081,274,536.24/901,701.20 - Step 6: Final answer
x = 994,876.43
Related Problems
Find fourth proportional to 450,850.60, 622,821.90 and 360,087.40
Half scale
Find fourth proportional to 1,803,402.40, 2,491,287.60 and 1,440,349.60
Double scale
Find fourth proportional to 901,702.20, 1,245,645.18 and 720,175.80
Similar ratio
Find fourth proportional to 1,352,551.80, 1,868,465.70 and 1,080,262.20
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.