Finding the Fourth Proportional to 429,879.87, 592,608.99 and 300,416.40
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Solution
The fourth proportional to 429,879.87, 592,608.99 and 300,416.40 is: 414,137.70
Step by Step Solution
- Step 1: Write the proportion equation
429,879.87 : 592,608.99 = 300,416.40 : x - Step 2: Convert to fraction form
429,879.87/592,608.99 = 300,416.40/x - Step 3: Cross multiply
429,879.87x = 592,608.99 × 300,416.40 - Step 4: Simplify right side
429,879.87x = 178,029,459,383.44 - Step 5: Solve for x
x = 178,029,459,383.44/429,879.87 - Step 6: Final answer
x = 414,137.70
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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.