Finding the Fourth Proportional to 543,372.81, 749,857.11 and 339,542.12
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Solution
The fourth proportional to 543,372.81, 749,857.11 and 339,542.12 is: 468,569.76
Step by Step Solution
- Step 1: Write the proportion equation
543,372.81 : 749,857.11 = 339,542.12 : x - Step 2: Convert to fraction form
543,372.81/749,857.11 = 339,542.12/x - Step 3: Cross multiply
543,372.81x = 749,857.11 × 339,542.12 - Step 4: Simplify right side
543,372.81x = 254,608,069,077.19 - Step 5: Solve for x
x = 254,608,069,077.19/543,372.81 - Step 6: Final answer
x = 468,569.76
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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.