Finding the Fourth Proportional to 1,805,412.21, 2,491,724.07 and 1,117,305.81
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Solution
The fourth proportional to 1,805,412.21, 2,491,724.07 and 1,117,305.81 is: 1,542,039.96
Step by Step Solution
- Step 1: Write the proportion equation
1,805,412.21 : 2,491,724.07 = 1,117,305.81 : x - Step 2: Convert to fraction form
1,805,412.21/2,491,724.07 = 1,117,305.81/x - Step 3: Cross multiply
1,805,412.21x = 2,491,724.07 × 1,117,305.81 - Step 4: Simplify right side
1,805,412.21x = 2,784,017,780,327.85 - Step 5: Solve for x
x = 2,784,017,780,327.85/1,805,412.21 - Step 6: Final answer
x = 1,542,039.96
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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.