Finding the Fourth Proportional to 1,205,578.45, 1,808,682.79 and 699,653.08
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Solution
The fourth proportional to 1,205,578.45, 1,808,682.79 and 699,653.08 is: 1,049,662.50
Step by Step Solution
- Step 1: Write the proportion equation
1,205,578.45 : 1,808,682.79 = 699,653.08 : x - Step 2: Convert to fraction form
1,205,578.45/1,808,682.79 = 699,653.08/x - Step 3: Cross multiply
1,205,578.45x = 1,808,682.79 × 699,653.08 - Step 4: Simplify right side
1,205,578.45x = 1,265,450,484,766.49 - Step 5: Solve for x
x = 1,265,450,484,766.49/1,205,578.45 - Step 6: Final answer
x = 1,049,662.50
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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.