Finding the Fourth Proportional to 2,162,478.96, 2,984,305.68 and 1,436,074.20
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Solution
The fourth proportional to 2,162,478.96, 2,984,305.68 and 1,436,074.20 is: 1,981,838.65
Step by Step Solution
- Step 1: Write the proportion equation
2,162,478.96 : 2,984,305.68 = 1,436,074.20 : x - Step 2: Convert to fraction form
2,162,478.96/2,984,305.68 = 1,436,074.20/x - Step 3: Cross multiply
2,162,478.96x = 2,984,305.68 × 1,436,074.20 - Step 4: Simplify right side
2,162,478.96x = 4,285,684,391,961.46 - Step 5: Solve for x
x = 4,285,684,391,961.46/2,162,478.96 - Step 6: Final answer
x = 1,981,838.65
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1.5x scale
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.