Finding the Fourth Proportional to 2,191,471.80, 3,287,207.70 and 1,293,343.80
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Solution
The fourth proportional to 2,191,471.80, 3,287,207.70 and 1,293,343.80 is: 1,940,015.70
Step by Step Solution
- Step 1: Write the proportion equation
2,191,471.80 : 3,287,207.70 = 1,293,343.80 : x - Step 2: Convert to fraction form
2,191,471.80/3,287,207.70 = 1,293,343.80/x - Step 3: Cross multiply
2,191,471.80x = 3,287,207.70 × 1,293,343.80 - Step 4: Simplify right side
2,191,471.80x = 4,251,489,698,107.26 - Step 5: Solve for x
x = 4,251,489,698,107.26/2,191,471.80 - Step 6: Final answer
x = 1,940,015.70
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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.