Finding the Fourth Proportional to 534,971.21, 738,335.79 and 331,087.73
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Solution
The fourth proportional to 534,971.21, 738,335.79 and 331,087.73 is: 456,947.80
Step by Step Solution
- Step 1: Write the proportion equation
534,971.21 : 738,335.79 = 331,087.73 : x - Step 2: Convert to fraction form
534,971.21/738,335.79 = 331,087.73/x - Step 3: Cross multiply
534,971.21x = 738,335.79 × 331,087.73 - Step 4: Simplify right side
534,971.21x = 244,453,916,997.18 - Step 5: Solve for x
x = 244,453,916,997.18/534,971.21 - Step 6: Final answer
x = 456,947.80
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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.