Finding the Fourth Proportional to 1,911,198.07, 2,863,646.20 and 1,110,231.19
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Solution
The fourth proportional to 1,911,198.07, 2,863,646.20 and 1,110,231.19 is: 1,663,516.40
Step by Step Solution
- Step 1: Write the proportion equation
1,911,198.07 : 2,863,646.20 = 1,110,231.19 : x - Step 2: Convert to fraction form
1,911,198.07/2,863,646.20 = 1,110,231.19/x - Step 3: Cross multiply
1,911,198.07x = 2,863,646.20 × 1,110,231.19 - Step 4: Simplify right side
1,911,198.07x = 3,179,309,328,364.98 - Step 5: Solve for x
x = 3,179,309,328,364.98/1,911,198.07 - Step 6: Final answer
x = 1,663,516.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.