Finding the Fourth Proportional to 397,456.41, 548,276.93 and 276,387.51
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Solution
The fourth proportional to 397,456.41, 548,276.93 and 276,387.51 is: 381,266.70
Step by Step Solution
- Step 1: Write the proportion equation
397,456.41 : 548,276.93 = 276,387.51 : x - Step 2: Convert to fraction form
397,456.41/548,276.93 = 276,387.51/x - Step 3: Cross multiply
397,456.41x = 548,276.93 × 276,387.51 - Step 4: Simplify right side
397,456.41x = 151,536,894,091.21 - Step 5: Solve for x
x = 151,536,894,091.21/397,456.41 - Step 6: Final answer
x = 381,266.70
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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.