Finding the Fourth Proportional to 5,278,778.94, 7,918,306.80 and 1,684,542.42
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Solution
The fourth proportional to 5,278,778.94, 7,918,306.80 and 1,684,542.42 is: 2,526,857.79
Step by Step Solution
- Step 1: Write the proportion equation
5,278,778.94 : 7,918,306.80 = 1,684,542.42 : x - Step 2: Convert to fraction form
5,278,778.94/7,918,306.80 = 1,684,542.42/x - Step 3: Cross multiply
5,278,778.94x = 7,918,306.80 × 1,684,542.42 - Step 4: Simplify right side
5,278,778.94x = 13,338,723,699,174.46 - Step 5: Solve for x
x = 13,338,723,699,174.46/5,278,778.94 - Step 6: Final answer
x = 2,526,857.79
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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.