Finding the Fourth Proportional to 2,821,446.88, 3,895,210.68 and 1,857,379.69
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Solution
The fourth proportional to 2,821,446.88, 3,895,210.68 and 1,857,379.69 is: 2,564,246.47
Step by Step Solution
- Step 1: Write the proportion equation
2,821,446.88 : 3,895,210.68 = 1,857,379.69 : x - Step 2: Convert to fraction form
2,821,446.88/3,895,210.68 = 1,857,379.69/x - Step 3: Cross multiply
2,821,446.88x = 3,895,210.68 × 1,857,379.69 - Step 4: Simplify right side
2,821,446.88x = 7,234,885,205,311.26 - Step 5: Solve for x
x = 7,234,885,205,311.26/2,821,446.88 - Step 6: Final answer
x = 2,564,246.47
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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.