Finding the Fourth Proportional to 391,796.76, 587,692.70 and 189,156.42
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Solution
The fourth proportional to 391,796.76, 587,692.70 and 189,156.42 is: 283,733.45
Step by Step Solution
- Step 1: Write the proportion equation
391,796.76 : 587,692.70 = 189,156.42 : x - Step 2: Convert to fraction form
391,796.76/587,692.70 = 189,156.42/x - Step 3: Cross multiply
391,796.76x = 587,692.70 × 189,156.42 - Step 4: Simplify right side
391,796.76x = 111,165,847,192.13 - Step 5: Solve for x
x = 111,165,847,192.13/391,796.76 - Step 6: Final answer
x = 283,733.45
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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.