Finding the Fourth Proportional to 1,989,751.44, 2,739,561.16 and 1,807,919.12
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Solution
The fourth proportional to 1,989,751.44, 2,739,561.16 and 1,807,919.12 is: 2,489,207.90
Step by Step Solution
- Step 1: Write the proportion equation
1,989,751.44 : 2,739,561.16 = 1,807,919.12 : x - Step 2: Convert to fraction form
1,989,751.44/2,739,561.16 = 1,807,919.12/x - Step 3: Cross multiply
1,989,751.44x = 2,739,561.16 × 1,807,919.12 - Step 4: Simplify right side
1,989,751.44x = 4,952,905,001,573.38 - Step 5: Solve for x
x = 4,952,905,001,573.38/1,989,751.44 - Step 6: Final answer
x = 2,489,207.90
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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.