Finding the Fourth Proportional to 3,986,656.80, 5,972,857.20 and 2,425,840.80
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Solution
The fourth proportional to 3,986,656.80, 5,972,857.20 and 2,425,840.80 is: 3,634,423.88
Step by Step Solution
- Step 1: Write the proportion equation
3,986,656.80 : 5,972,857.20 = 2,425,840.80 : x - Step 2: Convert to fraction form
3,986,656.80/5,972,857.20 = 2,425,840.80/x - Step 3: Cross multiply
3,986,656.80x = 5,972,857.20 × 2,425,840.80 - Step 4: Simplify right side
3,986,656.80x = 14,489,200,688,333.76 - Step 5: Solve for x
x = 14,489,200,688,333.76/3,986,656.80 - Step 6: Final answer
x = 3,634,423.88
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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.