Finding the Fourth Proportional to 1,418,689.77, 2,128,020.62 and 649,969.42
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Solution
The fourth proportional to 1,418,689.77, 2,128,020.62 and 649,969.42 is: 974,947.70
Step by Step Solution
- Step 1: Write the proportion equation
1,418,689.77 : 2,128,020.62 = 649,969.42 : x - Step 2: Convert to fraction form
1,418,689.77/2,128,020.62 = 649,969.42/x - Step 3: Cross multiply
1,418,689.77x = 2,128,020.62 × 649,969.42 - Step 4: Simplify right side
1,418,689.77x = 1,383,148,324,434.31 - Step 5: Solve for x
x = 1,383,148,324,434.31/1,418,689.77 - Step 6: Final answer
x = 974,947.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.