Finding the Fourth Proportional to 391,375.80, 587,173.05 and 191,702.70
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Solution
The fourth proportional to 391,375.80, 587,173.05 and 191,702.70 is: 287,607.61
Step by Step Solution
- Step 1: Write the proportion equation
391,375.80 : 587,173.05 = 191,702.70 : x - Step 2: Convert to fraction form
391,375.80/587,173.05 = 191,702.70/x - Step 3: Cross multiply
391,375.80x = 587,173.05 × 191,702.70 - Step 4: Simplify right side
391,375.80x = 112,562,659,052.24 - Step 5: Solve for x
x = 112,562,659,052.24/391,375.80 - Step 6: Final answer
x = 287,607.61
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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.