Finding the Fourth Proportional to 1,368,228.96, 1,888,143.39 and 756,397.62
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Solution
The fourth proportional to 1,368,228.96, 1,888,143.39 and 756,397.62 is: 1,043,821.76
Step by Step Solution
- Step 1: Write the proportion equation
1,368,228.96 : 1,888,143.39 = 756,397.62 : x - Step 2: Convert to fraction form
1,368,228.96/1,888,143.39 = 756,397.62/x - Step 3: Cross multiply
1,368,228.96x = 1,888,143.39 × 756,397.62 - Step 4: Simplify right side
1,368,228.96x = 1,428,187,166,414.73 - Step 5: Solve for x
x = 1,428,187,166,414.73/1,368,228.96 - Step 6: Final answer
x = 1,043,821.76
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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.