Finding the Fourth Proportional to 1,419,489.39, 2,129,569.70 and 459,943.41
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Solution
The fourth proportional to 1,419,489.39, 2,129,569.70 and 459,943.41 is: 690,023.85
Step by Step Solution
- Step 1: Write the proportion equation
1,419,489.39 : 2,129,569.70 = 459,943.41 : x - Step 2: Convert to fraction form
1,419,489.39/2,129,569.70 = 459,943.41/x - Step 3: Cross multiply
1,419,489.39x = 2,129,569.70 × 459,943.41 - Step 4: Simplify right side
1,419,489.39x = 979,481,536,703.11 - Step 5: Solve for x
x = 979,481,536,703.11/1,419,489.39 - Step 6: Final answer
x = 690,023.85
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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.