Finding the Fourth Proportional to 1,489,806.20, 2,234,709.30 and 543,207.80
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Solution
The fourth proportional to 1,489,806.20, 2,234,709.30 and 543,207.80 is: 814,811.70
Step by Step Solution
- Step 1: Write the proportion equation
1,489,806.20 : 2,234,709.30 = 543,207.80 : x - Step 2: Convert to fraction form
1,489,806.20/2,234,709.30 = 543,207.80/x - Step 3: Cross multiply
1,489,806.20x = 2,234,709.30 × 543,207.80 - Step 4: Simplify right side
1,489,806.20x = 1,213,911,522,492.54 - Step 5: Solve for x
x = 1,213,911,522,492.54/1,489,806.20 - Step 6: Final answer
x = 814,811.70
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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.