Finding the Fourth Proportional to 811,270.16, 1,216,907.31 and 331,497.97
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Solution
The fourth proportional to 811,270.16, 1,216,907.31 and 331,497.97 is: 497,247.81
Step by Step Solution
- Step 1: Write the proportion equation
811,270.16 : 1,216,907.31 = 331,497.97 : x - Step 2: Convert to fraction form
811,270.16/1,216,907.31 = 331,497.97/x - Step 3: Cross multiply
811,270.16x = 1,216,907.31 × 331,497.97 - Step 4: Simplify right side
811,270.16x = 403,402,304,644.78 - Step 5: Solve for x
x = 403,402,304,644.78/811,270.16 - Step 6: Final answer
x = 497,247.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.