Finding the Fourth Proportional to 2,405,812.46, 3,320,021.12 and 1,318,125.29
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Solution
The fourth proportional to 2,405,812.46, 3,320,021.12 and 1,318,125.29 is: 1,819,012.85
Step by Step Solution
- Step 1: Write the proportion equation
2,405,812.46 : 3,320,021.12 = 1,318,125.29 : x - Step 2: Convert to fraction form
2,405,812.46/3,320,021.12 = 1,318,125.29/x - Step 3: Cross multiply
2,405,812.46x = 3,320,021.12 × 1,318,125.29 - Step 4: Simplify right side
2,405,812.46x = 4,376,203,778,415.39 - Step 5: Solve for x
x = 4,376,203,778,415.39/2,405,812.46 - Step 6: Final answer
x = 1,819,012.85
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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.