Finding the Fourth Proportional to 1,979,626.19, 2,731,891.64 and 1,074,208.19
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Solution
The fourth proportional to 1,979,626.19, 2,731,891.64 and 1,074,208.19 is: 1,482,411.37
Step by Step Solution
- Step 1: Write the proportion equation
1,979,626.19 : 2,731,891.64 = 1,074,208.19 : x - Step 2: Convert to fraction form
1,979,626.19/2,731,891.64 = 1,074,208.19/x - Step 3: Cross multiply
1,979,626.19x = 2,731,891.64 × 1,074,208.19 - Step 4: Simplify right side
1,979,626.19x = 2,934,620,368,509.49 - Step 5: Solve for x
x = 2,934,620,368,509.49/1,979,626.19 - Step 6: Final answer
x = 1,482,411.37
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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.