Finding the Fourth Proportional to 4,211,428.12, 5,811,770.84 and 2,277,688.72
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Solution
The fourth proportional to 4,211,428.12, 5,811,770.84 and 2,277,688.72 is: 3,143,210.45
Step by Step Solution
- Step 1: Write the proportion equation
4,211,428.12 : 5,811,770.84 = 2,277,688.72 : x - Step 2: Convert to fraction form
4,211,428.12/5,811,770.84 = 2,277,688.72/x - Step 3: Cross multiply
4,211,428.12x = 5,811,770.84 × 2,277,688.72 - Step 4: Simplify right side
4,211,428.12x = 13,237,404,885,492.93 - Step 5: Solve for x
x = 13,237,404,885,492.93/4,211,428.12 - Step 6: Final answer
x = 3,143,210.45
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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.