Finding the Fourth Proportional to 2,405,816.97, 3,320,027.31 and 1,318,129.80
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Solution
The fourth proportional to 2,405,816.97, 3,320,027.31 and 1,318,129.80 is: 1,819,019.06
Step by Step Solution
- Step 1: Write the proportion equation
2,405,816.97 : 3,320,027.31 = 1,318,129.80 : x - Step 2: Convert to fraction form
2,405,816.97/3,320,027.31 = 1,318,129.80/x - Step 3: Cross multiply
2,405,816.97x = 3,320,027.31 × 1,318,129.80 - Step 4: Simplify right side
2,405,816.97x = 4,376,226,934,124.84 - Step 5: Solve for x
x = 4,376,226,934,124.84/2,405,816.97 - Step 6: Final answer
x = 1,819,019.06
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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.