Finding the Fourth Proportional to 2,189,841.90, 3,285,939.26 and 911,330.81
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Solution
The fourth proportional to 2,189,841.90, 3,285,939.26 and 911,330.81 is: 1,367,485.78
Step by Step Solution
- Step 1: Write the proportion equation
2,189,841.90 : 3,285,939.26 = 911,330.81 : x - Step 2: Convert to fraction form
2,189,841.90/3,285,939.26 = 911,330.81/x - Step 3: Cross multiply
2,189,841.90x = 3,285,939.26 × 911,330.81 - Step 4: Simplify right side
2,189,841.90x = 2,994,577,666,440.25 - Step 5: Solve for x
x = 2,994,577,666,440.25/2,189,841.90 - Step 6: Final answer
x = 1,367,485.78
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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.