Finding the Fourth Proportional to 1,638,318.79, 2,457,476.06 and 440,241.12
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Solution
The fourth proportional to 1,638,318.79, 2,457,476.06 and 440,241.12 is: 660,361.11
Step by Step Solution
- Step 1: Write the proportion equation
1,638,318.79 : 2,457,476.06 = 440,241.12 : x - Step 2: Convert to fraction form
1,638,318.79/2,457,476.06 = 440,241.12/x - Step 3: Cross multiply
1,638,318.79x = 2,457,476.06 × 440,241.12 - Step 4: Simplify right side
1,638,318.79x = 1,081,882,010,826.38 - Step 5: Solve for x
x = 1,081,882,010,826.38/1,638,318.79 - Step 6: Final answer
x = 660,361.11
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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.