Finding the Fourth Proportional to 691,077.84, 1,036,757.70 and 391,692.12
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Solution
The fourth proportional to 691,077.84, 1,036,757.70 and 391,692.12 is: 587,618.06
Step by Step Solution
- Step 1: Write the proportion equation
691,077.84 : 1,036,757.70 = 391,692.12 : x - Step 2: Convert to fraction form
691,077.84/1,036,757.70 = 391,692.12/x - Step 3: Cross multiply
691,077.84x = 1,036,757.70 × 391,692.12 - Step 4: Simplify right side
691,077.84x = 406,089,821,439.32 - Step 5: Solve for x
x = 406,089,821,439.32/691,077.84 - Step 6: Final answer
x = 587,618.06
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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.