Finding the Fourth Proportional to 3,991,418.64, 5,984,395.20 and 1,432,576.80
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Solution
The fourth proportional to 3,991,418.64, 5,984,395.20 and 1,432,576.80 is: 2,147,884.37
Step by Step Solution
- Step 1: Write the proportion equation
3,991,418.64 : 5,984,395.20 = 1,432,576.80 : x - Step 2: Convert to fraction form
3,991,418.64/5,984,395.20 = 1,432,576.80/x - Step 3: Cross multiply
3,991,418.64x = 5,984,395.20 × 1,432,576.80 - Step 4: Simplify right side
3,991,418.64x = 8,573,105,725,551.36 - Step 5: Solve for x
x = 8,573,105,725,551.36/3,991,418.64 - Step 6: Final answer
x = 2,147,884.37
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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.