Finding the Fourth Proportional to 1,511,987.70, 2,268,313.51 and 1,111,414.05
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Solution
The fourth proportional to 1,511,987.70, 2,268,313.51 and 1,111,414.05 is: 1,667,365.09
Step by Step Solution
- Step 1: Write the proportion equation
1,511,987.70 : 2,268,313.51 = 1,111,414.05 : x - Step 2: Convert to fraction form
1,511,987.70/2,268,313.51 = 1,111,414.05/x - Step 3: Cross multiply
1,511,987.70x = 2,268,313.51 × 1,111,414.05 - Step 4: Simplify right side
1,511,987.70x = 2,521,035,509,993.11 - Step 5: Solve for x
x = 2,521,035,509,993.11/1,511,987.70 - Step 6: Final answer
x = 1,667,365.09
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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.