Finding the Fourth Proportional to 3,226,429.12, 4,453,983.84 and 1,868,039.68
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Solution
The fourth proportional to 3,226,429.12, 4,453,983.84 and 1,868,039.68 is: 2,578,769.98
Step by Step Solution
- Step 1: Write the proportion equation
3,226,429.12 : 4,453,983.84 = 1,868,039.68 : x - Step 2: Convert to fraction form
3,226,429.12/4,453,983.84 = 1,868,039.68/x - Step 3: Cross multiply
3,226,429.12x = 4,453,983.84 × 1,868,039.68 - Step 4: Simplify right side
3,226,429.12x = 8,320,218,547,198.77 - Step 5: Solve for x
x = 8,320,218,547,198.77/3,226,429.12 - Step 6: Final answer
x = 2,578,769.98
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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.