Finding the Fourth Proportional to 1,212,639.05, 1,673,369.61 and 696,476.98
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Solution
The fourth proportional to 1,212,639.05, 1,673,369.61 and 696,476.98 is: 961,096.72
Step by Step Solution
- Step 1: Write the proportion equation
1,212,639.05 : 1,673,369.61 = 696,476.98 : x - Step 2: Convert to fraction form
1,212,639.05/1,673,369.61 = 696,476.98/x - Step 3: Cross multiply
1,212,639.05x = 1,673,369.61 × 696,476.98 - Step 4: Simplify right side
1,212,639.05x = 1,165,463,412,396.58 - Step 5: Solve for x
x = 1,165,463,412,396.58/1,212,639.05 - Step 6: Final answer
x = 961,096.72
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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.