Finding the Fourth Proportional to 3,202,486.71, 4,418,708.54 and 1,913,075.79
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Solution
The fourth proportional to 3,202,486.71, 4,418,708.54 and 1,913,075.79 is: 2,639,612.62
Step by Step Solution
- Step 1: Write the proportion equation
3,202,486.71 : 4,418,708.54 = 1,913,075.79 : x - Step 2: Convert to fraction form
3,202,486.71/4,418,708.54 = 1,913,075.79/x - Step 3: Cross multiply
3,202,486.71x = 4,418,708.54 × 1,913,075.79 - Step 4: Simplify right side
3,202,486.71x = 8,453,324,321,374.87 - Step 5: Solve for x
x = 8,453,324,321,374.87/3,202,486.71 - Step 6: Final answer
x = 2,639,612.62
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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.