Finding the Fourth Proportional to 2,909,922.39, 4,015,694.09 and 1,686,936.96
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Solution
The fourth proportional to 2,909,922.39, 4,015,694.09 and 1,686,936.96 is: 2,327,973.70
Step by Step Solution
- Step 1: Write the proportion equation
2,909,922.39 : 4,015,694.09 = 1,686,936.96 : x - Step 2: Convert to fraction form
2,909,922.39/4,015,694.09 = 1,686,936.96/x - Step 3: Cross multiply
2,909,922.39x = 4,015,694.09 × 1,686,936.96 - Step 4: Simplify right side
2,909,922.39x = 6,774,222,780,474.57 - Step 5: Solve for x
x = 6,774,222,780,474.57/2,909,922.39 - Step 6: Final answer
x = 2,327,973.70
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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.