Finding the Fourth Proportional to 3,439,953.12, 4,747,138.34 and 1,891,241.14
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Solution
The fourth proportional to 3,439,953.12, 4,747,138.34 and 1,891,241.14 is: 2,609,914.45
Step by Step Solution
- Step 1: Write the proportion equation
3,439,953.12 : 4,747,138.34 = 1,891,241.14 : x - Step 2: Convert to fraction form
3,439,953.12/4,747,138.34 = 1,891,241.14/x - Step 3: Cross multiply
3,439,953.12x = 4,747,138.34 × 1,891,241.14 - Step 4: Simplify right side
3,439,953.12x = 8,977,983,328,290.95 - Step 5: Solve for x
x = 8,977,983,328,290.95/3,439,953.12 - Step 6: Final answer
x = 2,609,914.45
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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.