Finding the Fourth Proportional to 990,437.88, 1,486,163.50 and 471,700.38
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Solution
The fourth proportional to 990,437.88, 1,486,163.50 and 471,700.38 is: 707,791.88
Step by Step Solution
- Step 1: Write the proportion equation
990,437.88 : 1,486,163.50 = 471,700.38 : x - Step 2: Convert to fraction form
990,437.88/1,486,163.50 = 471,700.38/x - Step 3: Cross multiply
990,437.88x = 1,486,163.50 × 471,700.38 - Step 4: Simplify right side
990,437.88x = 701,023,887,692.13 - Step 5: Solve for x
x = 701,023,887,692.13/990,437.88 - Step 6: Final answer
x = 707,791.88
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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.