Finding the Fourth Proportional to 1,979,107.74, 2,731,173.98 and 1,073,689.74
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Solution
The fourth proportional to 1,979,107.74, 2,731,173.98 and 1,073,689.74 is: 1,481,694.71
Step by Step Solution
- Step 1: Write the proportion equation
1,979,107.74 : 2,731,173.98 = 1,073,689.74 : x - Step 2: Convert to fraction form
1,979,107.74/2,731,173.98 = 1,073,689.74/x - Step 3: Cross multiply
1,979,107.74x = 2,731,173.98 × 1,073,689.74 - Step 4: Simplify right side
1,979,107.74x = 2,932,433,475,112.52 - Step 5: Solve for x
x = 2,932,433,475,112.52/1,979,107.74 - Step 6: Final answer
x = 1,481,694.71
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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.