Finding the Fourth Proportional to 2,889,890.88, 3,986,537.40 and 1,786,969.68
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Solution
The fourth proportional to 2,889,890.88, 3,986,537.40 and 1,786,969.68 is: 2,465,083.20
Step by Step Solution
- Step 1: Write the proportion equation
2,889,890.88 : 3,986,537.40 = 1,786,969.68 : x - Step 2: Convert to fraction form
2,889,890.88/3,986,537.40 = 1,786,969.68/x - Step 3: Cross multiply
2,889,890.88x = 3,986,537.40 × 1,786,969.68 - Step 4: Simplify right side
2,889,890.88x = 7,123,821,461,986.03 - Step 5: Solve for x
x = 7,123,821,461,986.03/2,889,890.88 - Step 6: Final answer
x = 2,465,083.20
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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.