Finding the Fourth Proportional to 3,431,341.44, 4,731,368.61 and 2,189,289.92
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Solution
The fourth proportional to 3,431,341.44, 4,731,368.61 and 2,189,289.92 is: 3,018,742.90
Step by Step Solution
- Step 1: Write the proportion equation
3,431,341.44 : 4,731,368.61 = 2,189,289.92 : x - Step 2: Convert to fraction form
3,431,341.44/4,731,368.61 = 2,189,289.92/x - Step 3: Cross multiply
3,431,341.44x = 4,731,368.61 × 2,189,289.92 - Step 4: Simplify right side
3,431,341.44x = 10,358,337,604,529.60 - Step 5: Solve for x
x = 10,358,337,604,529.60/3,431,341.44 - Step 6: Final answer
x = 3,018,742.90
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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.