Finding the Fourth Proportional to 3,436,772.19, 4,742,218.37 and 1,986,187.47
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Solution
The fourth proportional to 3,436,772.19, 4,742,218.37 and 1,986,187.47 is: 2,740,634.00
Step by Step Solution
- Step 1: Write the proportion equation
3,436,772.19 : 4,742,218.37 = 1,986,187.47 : x - Step 2: Convert to fraction form
3,436,772.19/4,742,218.37 = 1,986,187.47/x - Step 3: Cross multiply
3,436,772.19x = 4,742,218.37 × 1,986,187.47 - Step 4: Simplify right side
3,436,772.19x = 9,418,934,693,679.97 - Step 5: Solve for x
x = 9,418,934,693,679.97/3,436,772.19 - Step 6: Final answer
x = 2,740,634.00
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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.