Finding the Fourth Proportional to 1,088,405.21, 1,632,644.27 and 378,439.40
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Solution
The fourth proportional to 1,088,405.21, 1,632,644.27 and 378,439.40 is: 567,671.78
Step by Step Solution
- Step 1: Write the proportion equation
1,088,405.21 : 1,632,644.27 = 378,439.40 : x - Step 2: Convert to fraction form
1,088,405.21/1,632,644.27 = 378,439.40/x - Step 3: Cross multiply
1,088,405.21x = 1,632,644.27 × 378,439.40 - Step 4: Simplify right side
1,088,405.21x = 617,856,917,952.24 - Step 5: Solve for x
x = 617,856,917,952.24/1,088,405.21 - Step 6: Final answer
x = 567,671.78
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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.