Finding the Fourth Proportional to 1,368,181.69, 1,888,078.23 and 756,350.21
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Solution
The fourth proportional to 1,368,181.69, 1,888,078.23 and 756,350.21 is: 1,043,756.38
Step by Step Solution
- Step 1: Write the proportion equation
1,368,181.69 : 1,888,078.23 = 756,350.21 : x - Step 2: Convert to fraction form
1,368,181.69/1,888,078.23 = 756,350.21/x - Step 3: Cross multiply
1,368,181.69x = 1,888,078.23 × 756,350.21 - Step 4: Simplify right side
1,368,181.69x = 1,428,048,370,477.12 - Step 5: Solve for x
x = 1,428,048,370,477.12/1,368,181.69 - Step 6: Final answer
x = 1,043,756.38
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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.