Finding the Fourth Proportional to 1,432,198.38, 1,976,394.33 and 787,618.58
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Solution
The fourth proportional to 1,432,198.38, 1,976,394.33 and 787,618.58 is: 1,086,891.95
Step by Step Solution
- Step 1: Write the proportion equation
1,432,198.38 : 1,976,394.33 = 787,618.58 : x - Step 2: Convert to fraction form
1,432,198.38/1,976,394.33 = 787,618.58/x - Step 3: Cross multiply
1,432,198.38x = 1,976,394.33 × 787,618.58 - Step 4: Simplify right side
1,432,198.38x = 1,556,644,885,832.68 - Step 5: Solve for x
x = 1,556,644,885,832.68/1,432,198.38 - Step 6: Final answer
x = 1,086,891.95
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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.