Finding the Fourth Proportional to 899,692.21, 1,241,575.14 and 491,795.65
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Solution
The fourth proportional to 899,692.21, 1,241,575.14 and 491,795.65 is: 678,677.94
Step by Step Solution
- Step 1: Write the proportion equation
899,692.21 : 1,241,575.14 = 491,795.65 : x - Step 2: Convert to fraction form
899,692.21/1,241,575.14 = 491,795.65/x - Step 3: Cross multiply
899,692.21x = 1,241,575.14 × 491,795.65 - Step 4: Simplify right side
899,692.21x = 610,601,253,000.14 - Step 5: Solve for x
x = 610,601,253,000.14/899,692.21 - Step 6: Final answer
x = 678,677.94
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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.