Finding the Fourth Proportional to 1,585,917.40, 2,378,855.49 and 387,850.10
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Solution
The fourth proportional to 1,585,917.40, 2,378,855.49 and 387,850.10 is: 581,770.10
Step by Step Solution
- Step 1: Write the proportion equation
1,585,917.40 : 2,378,855.49 = 387,850.10 : x - Step 2: Convert to fraction form
1,585,917.40/2,378,855.49 = 387,850.10/x - Step 3: Cross multiply
1,585,917.40x = 2,378,855.49 × 387,850.10 - Step 4: Simplify right side
1,585,917.40x = 922,639,333,023.87 - Step 5: Solve for x
x = 922,639,333,023.87/1,585,917.40 - Step 6: Final answer
x = 581,770.10
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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.