Finding the Fourth Proportional to 3,218,076.26, 4,439,089.75 and 1,928,169.31
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Solution
The fourth proportional to 3,218,076.26, 4,439,089.75 and 1,928,169.31 is: 2,659,761.90
Step by Step Solution
- Step 1: Write the proportion equation
3,218,076.26 : 4,439,089.75 = 1,928,169.31 : x - Step 2: Convert to fraction form
3,218,076.26/4,439,089.75 = 1,928,169.31/x - Step 3: Cross multiply
3,218,076.26x = 4,439,089.75 × 1,928,169.31 - Step 4: Simplify right side
3,218,076.26x = 8,559,316,621,729.01 - Step 5: Solve for x
x = 8,559,316,621,729.01/3,218,076.26 - Step 6: Final answer
x = 2,659,761.90
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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.