Finding the Fourth Proportional to 1,986,774.43, 2,741,807.33 and 1,407,034.75
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Solution
The fourth proportional to 1,986,774.43, 2,741,807.33 and 1,407,034.75 is: 1,941,749.46
Step by Step Solution
- Step 1: Write the proportion equation
1,986,774.43 : 2,741,807.33 = 1,407,034.75 : x - Step 2: Convert to fraction form
1,986,774.43/2,741,807.33 = 1,407,034.75/x - Step 3: Cross multiply
1,986,774.43x = 2,741,807.33 × 1,407,034.75 - Step 4: Simplify right side
1,986,774.43x = 3,857,818,184,079.54 - Step 5: Solve for x
x = 3,857,818,184,079.54/1,986,774.43 - Step 6: Final answer
x = 1,941,749.46
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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.