Finding the Fourth Proportional to 612,997.12, 919,493.76 and 192,304.96
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Solution
The fourth proportional to 612,997.12, 919,493.76 and 192,304.96 is: 288,456.84
Step by Step Solution
- Step 1: Write the proportion equation
612,997.12 : 919,493.76 = 192,304.96 : x - Step 2: Convert to fraction form
612,997.12/919,493.76 = 192,304.96/x - Step 3: Cross multiply
612,997.12x = 919,493.76 × 192,304.96 - Step 4: Simplify right side
612,997.12x = 176,823,210,737.05 - Step 5: Solve for x
x = 176,823,210,737.05/612,997.12 - Step 6: Final answer
x = 288,456.84
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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.