Finding the Fourth Proportional to 858,986.17, 1,288,645.27 and 326,465.68
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Solution
The fourth proportional to 858,986.17, 1,288,645.27 and 326,465.68 is: 489,761.61
Step by Step Solution
- Step 1: Write the proportion equation
858,986.17 : 1,288,645.27 = 326,465.68 : x - Step 2: Convert to fraction form
858,986.17/1,288,645.27 = 326,465.68/x - Step 3: Cross multiply
858,986.17x = 1,288,645.27 × 326,465.68 - Step 4: Simplify right side
858,986.17x = 420,698,451,604.26 - Step 5: Solve for x
x = 420,698,451,604.26/858,986.17 - Step 6: Final answer
x = 489,761.61
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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.