Finding the Fourth Proportional to 392,018.20, 540,412.49 and 277,094.09
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Solution
The fourth proportional to 392,018.20, 540,412.49 and 277,094.09 is: 381,985.09
Step by Step Solution
- Step 1: Write the proportion equation
392,018.20 : 540,412.49 = 277,094.09 : x - Step 2: Convert to fraction form
392,018.20/540,412.49 = 277,094.09/x - Step 3: Cross multiply
392,018.20x = 540,412.49 × 277,094.09 - Step 4: Simplify right side
392,018.20x = 149,745,107,141.18 - Step 5: Solve for x
x = 149,745,107,141.18/392,018.20 - Step 6: Final answer
x = 381,985.09
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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.