Finding the Fourth Proportional to 3,087,012.09, 4,260,076.69 and 1,728,885.09
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Solution
The fourth proportional to 3,087,012.09, 4,260,076.69 and 1,728,885.09 is: 2,385,861.43
Step by Step Solution
- Step 1: Write the proportion equation
3,087,012.09 : 4,260,076.69 = 1,728,885.09 : x - Step 2: Convert to fraction form
3,087,012.09/4,260,076.69 = 1,728,885.09/x - Step 3: Cross multiply
3,087,012.09x = 4,260,076.69 × 1,728,885.09 - Step 4: Simplify right side
3,087,012.09x = 7,365,183,086,492.29 - Step 5: Solve for x
x = 7,365,183,086,492.29/3,087,012.09 - Step 6: Final answer
x = 2,385,861.43
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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.