Finding the Fourth Proportional to 1,979,112.99, 2,731,181.22 and 1,073,694.99
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Solution
The fourth proportional to 1,979,112.99, 2,731,181.22 and 1,073,694.99 is: 1,481,701.96
Step by Step Solution
- Step 1: Write the proportion equation
1,979,112.99 : 2,731,181.22 = 1,073,694.99 : x - Step 2: Convert to fraction form
1,979,112.99/2,731,181.22 = 1,073,694.99/x - Step 3: Cross multiply
1,979,112.99x = 2,731,181.22 × 1,073,694.99 - Step 4: Simplify right side
1,979,112.99x = 2,932,455,592,696.09 - Step 5: Solve for x
x = 2,932,455,592,696.09/1,979,112.99 - Step 6: Final answer
x = 1,481,701.96
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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.