Finding the Fourth Proportional to 2,665,416.75, 3,678,275.13 and 1,441,722.21
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Solution
The fourth proportional to 2,665,416.75, 3,678,275.13 and 1,441,722.21 is: 1,989,576.66
Step by Step Solution
- Step 1: Write the proportion equation
2,665,416.75 : 3,678,275.13 = 1,441,722.21 : x - Step 2: Convert to fraction form
2,665,416.75/3,678,275.13 = 1,441,722.21/x - Step 3: Cross multiply
2,665,416.75x = 3,678,275.13 × 1,441,722.21 - Step 4: Simplify right side
2,665,416.75x = 5,303,050,949,411.64 - Step 5: Solve for x
x = 5,303,050,949,411.64/2,665,416.75 - Step 6: Final answer
x = 1,989,576.66
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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.