Finding the Fourth Proportional to 3,120,997.80, 4,674,498.30 and 2,561,125.80
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Solution
The fourth proportional to 3,120,997.80, 4,674,498.30 and 2,561,125.80 is: 3,835,945.73
Step by Step Solution
- Step 1: Write the proportion equation
3,120,997.80 : 4,674,498.30 = 2,561,125.80 : x - Step 2: Convert to fraction form
3,120,997.80/4,674,498.30 = 2,561,125.80/x - Step 3: Cross multiply
3,120,997.80x = 4,674,498.30 × 2,561,125.80 - Step 4: Simplify right side
3,120,997.80x = 11,971,978,198,186.14 - Step 5: Solve for x
x = 11,971,978,198,186.14/3,120,997.80 - Step 6: Final answer
x = 3,835,945.73
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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.