Finding the Fourth Proportional to 5,381,708.58, 8,072,592.12 and 1,392,620.58
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Solution
The fourth proportional to 5,381,708.58, 8,072,592.12 and 1,392,620.58 is: 2,088,938.44
Step by Step Solution
- Step 1: Write the proportion equation
5,381,708.58 : 8,072,592.12 = 1,392,620.58 : x - Step 2: Convert to fraction form
5,381,708.58/8,072,592.12 = 1,392,620.58/x - Step 3: Cross multiply
5,381,708.58x = 8,072,592.12 × 1,392,620.58 - Step 4: Simplify right side
5,381,708.58x = 11,242,057,920,257.83 - Step 5: Solve for x
x = 11,242,057,920,257.83/5,381,708.58 - Step 6: Final answer
x = 2,088,938.44
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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.