Finding the Fourth Proportional to 1,991,211.13, 2,747,866.26 and 1,085,793.13
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Solution
The fourth proportional to 1,991,211.13, 2,747,866.26 and 1,085,793.13 is: 1,498,391.74
Step by Step Solution
- Step 1: Write the proportion equation
1,991,211.13 : 2,747,866.26 = 1,085,793.13 : x - Step 2: Convert to fraction form
1,991,211.13/2,747,866.26 = 1,085,793.13/x - Step 3: Cross multiply
1,991,211.13x = 2,747,866.26 × 1,085,793.13 - Step 4: Simplify right side
1,991,211.13x = 2,983,614,307,266.79 - Step 5: Solve for x
x = 2,983,614,307,266.79/1,991,211.13 - Step 6: Final answer
x = 1,498,391.74
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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.