Finding the Fourth Proportional to 667,249.72, 920,806.44 and 361,329.68
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Solution
The fourth proportional to 667,249.72, 920,806.44 and 361,329.68 is: 498,635.95
Step by Step Solution
- Step 1: Write the proportion equation
667,249.72 : 920,806.44 = 361,329.68 : x - Step 2: Convert to fraction form
667,249.72/920,806.44 = 361,329.68/x - Step 3: Cross multiply
667,249.72x = 920,806.44 × 361,329.68 - Step 4: Simplify right side
667,249.72x = 332,714,696,307.14 - Step 5: Solve for x
x = 332,714,696,307.14/667,249.72 - Step 6: Final answer
x = 498,635.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.