Finding the Fourth Proportional to 4,922,578.12, 7,383,867.20 and 1,328,339.32
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Solution
The fourth proportional to 4,922,578.12, 7,383,867.20 and 1,328,339.32 is: 1,992,508.99
Step by Step Solution
- Step 1: Write the proportion equation
4,922,578.12 : 7,383,867.20 = 1,328,339.32 : x - Step 2: Convert to fraction form
4,922,578.12/7,383,867.20 = 1,328,339.32/x - Step 3: Cross multiply
4,922,578.12x = 7,383,867.20 × 1,328,339.32 - Step 4: Simplify right side
4,922,578.12x = 9,808,281,135,418.31 - Step 5: Solve for x
x = 9,808,281,135,418.31/4,922,578.12 - Step 6: Final answer
x = 1,992,508.99
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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.