Finding the Fourth Proportional to 2,157,194.58, 2,976,925.02 and 1,190,324.10
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Solution
The fourth proportional to 2,157,194.58, 2,976,925.02 and 1,190,324.10 is: 1,642,645.33
Step by Step Solution
- Step 1: Write the proportion equation
2,157,194.58 : 2,976,925.02 = 1,190,324.10 : x - Step 2: Convert to fraction form
2,157,194.58/2,976,925.02 = 1,190,324.10/x - Step 3: Cross multiply
2,157,194.58x = 2,976,925.02 × 1,190,324.10 - Step 4: Simplify right side
2,157,194.58x = 3,543,505,595,198.98 - Step 5: Solve for x
x = 3,543,505,595,198.98/2,157,194.58 - Step 6: Final answer
x = 1,642,645.33
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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.