Finding the Fourth Proportional to 1,421,089.44, 2,131,546.68 and 474,380.88
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Solution
The fourth proportional to 1,421,089.44, 2,131,546.68 and 474,380.88 is: 711,542.12
Step by Step Solution
- Step 1: Write the proportion equation
1,421,089.44 : 2,131,546.68 = 474,380.88 : x - Step 2: Convert to fraction form
1,421,089.44/2,131,546.68 = 474,380.88/x - Step 3: Cross multiply
1,421,089.44x = 2,131,546.68 × 474,380.88 - Step 4: Simplify right side
1,421,089.44x = 1,011,164,989,819.48 - Step 5: Solve for x
x = 1,011,164,989,819.48/1,421,089.44 - Step 6: Final answer
x = 711,542.12
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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.