Finding the Fourth Proportional to 455,400.35, 682,186.83 and 418,197.05
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Solution
The fourth proportional to 455,400.35, 682,186.83 and 418,197.05 is: 626,456.52
Step by Step Solution
- Step 1: Write the proportion equation
455,400.35 : 682,186.83 = 418,197.05 : x - Step 2: Convert to fraction form
455,400.35/682,186.83 = 418,197.05/x - Step 3: Cross multiply
455,400.35x = 682,186.83 × 418,197.05 - Step 4: Simplify right side
455,400.35x = 285,288,516,443.92 - Step 5: Solve for x
x = 285,288,516,443.92/455,400.35 - Step 6: Final answer
x = 626,456.52
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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.