Finding the Fourth Proportional to 421,473.44, 581,456.95 and 276,314.09
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Solution
The fourth proportional to 421,473.44, 581,456.95 and 276,314.09 is: 381,197.79
Step by Step Solution
- Step 1: Write the proportion equation
421,473.44 : 581,456.95 = 276,314.09 : x - Step 2: Convert to fraction form
421,473.44/581,456.95 = 276,314.09/x - Step 3: Cross multiply
421,473.44x = 581,456.95 × 276,314.09 - Step 4: Simplify right side
421,473.44x = 160,664,744,415.36 - Step 5: Solve for x
x = 160,664,744,415.36/421,473.44 - Step 6: Final answer
x = 381,197.79
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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.