Finding the Fourth Proportional to 3,977,889.75, 5,966,982.45 and 1,282,253.90
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Solution
The fourth proportional to 3,977,889.75, 5,966,982.45 and 1,282,253.90 is: 1,923,428.49
Step by Step Solution
- Step 1: Write the proportion equation
3,977,889.75 : 5,966,982.45 = 1,282,253.90 : x - Step 2: Convert to fraction form
3,977,889.75/5,966,982.45 = 1,282,253.90/x - Step 3: Cross multiply
3,977,889.75x = 5,966,982.45 × 1,282,253.90 - Step 4: Simplify right side
3,977,889.75x = 7,651,186,487,909.14 - Step 5: Solve for x
x = 7,651,186,487,909.14/3,977,889.75 - Step 6: Final answer
x = 1,923,428.49
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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.