Finding the Fourth Proportional to 1,407,711.26, 1,943,395.32 and 1,101,136.28
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Solution
The fourth proportional to 1,407,711.26, 1,943,395.32 and 1,101,136.28 is: 1,520,157.69
Step by Step Solution
- Step 1: Write the proportion equation
1,407,711.26 : 1,943,395.32 = 1,101,136.28 : x - Step 2: Convert to fraction form
1,407,711.26/1,943,395.32 = 1,101,136.28/x - Step 3: Cross multiply
1,407,711.26x = 1,943,395.32 × 1,101,136.28 - Step 4: Simplify right side
1,407,711.26x = 2,139,943,093,234.21 - Step 5: Solve for x
x = 2,139,943,093,234.21/1,407,711.26 - Step 6: Final answer
x = 1,520,157.69
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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.