Finding the Fourth Proportional to 633,990.08, 874,996.02 and 392,350.47
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Solution
The fourth proportional to 633,990.08, 874,996.02 and 392,350.47 is: 541,499.17
Step by Step Solution
- Step 1: Write the proportion equation
633,990.08 : 874,996.02 = 392,350.47 : x - Step 2: Convert to fraction form
633,990.08/874,996.02 = 392,350.47/x - Step 3: Cross multiply
633,990.08x = 874,996.02 × 392,350.47 - Step 4: Simplify right side
633,990.08x = 343,305,099,695.13 - Step 5: Solve for x
x = 343,305,099,695.13/633,990.08 - Step 6: Final answer
x = 541,499.17
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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.