Finding the Fourth Proportional to 1,821,167.80, 2,731,751.70 and 1,112,579.80
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Solution
The fourth proportional to 1,821,167.80, 2,731,751.70 and 1,112,579.80 is: 1,668,869.70
Step by Step Solution
- Step 1: Write the proportion equation
1,821,167.80 : 2,731,751.70 = 1,112,579.80 : x - Step 2: Convert to fraction form
1,821,167.80/2,731,751.70 = 1,112,579.80/x - Step 3: Cross multiply
1,821,167.80x = 2,731,751.70 × 1,112,579.80 - Step 4: Simplify right side
1,821,167.80x = 3,039,291,760,035.66 - Step 5: Solve for x
x = 3,039,291,760,035.66/1,821,167.80 - Step 6: Final answer
x = 1,668,869.70
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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.