Finding the Fourth Proportional to 2,628,821.92, 3,624,487.12 and 2,193,864.88
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Solution
The fourth proportional to 2,628,821.92, 3,624,487.12 and 2,193,864.88 is: 3,024,790.28
Step by Step Solution
- Step 1: Write the proportion equation
2,628,821.92 : 3,624,487.12 = 2,193,864.88 : x - Step 2: Convert to fraction form
2,628,821.92/3,624,487.12 = 2,193,864.88/x - Step 3: Cross multiply
2,628,821.92x = 3,624,487.12 × 2,193,864.88 - Step 4: Simplify right side
2,628,821.92x = 7,951,635,000,580.35 - Step 5: Solve for x
x = 7,951,635,000,580.35/2,628,821.92 - Step 6: Final answer
x = 3,024,790.28
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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.