Finding the Fourth Proportional to 426,297.60, 639,676.80 and 189,676.80
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Solution
The fourth proportional to 426,297.60, 639,676.80 and 189,676.80 is: 284,617.71
Step by Step Solution
- Step 1: Write the proportion equation
426,297.60 : 639,676.80 = 189,676.80 : x - Step 2: Convert to fraction form
426,297.60/639,676.80 = 189,676.80/x - Step 3: Cross multiply
426,297.60x = 639,676.80 × 189,676.80 - Step 4: Simplify right side
426,297.60x = 121,331,848,458.24 - Step 5: Solve for x
x = 121,331,848,458.24/426,297.60 - Step 6: Final answer
x = 284,617.71
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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.