Finding the Fourth Proportional to 680,092.14, 938,511.99 and 393,606.48
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Solution
The fourth proportional to 680,092.14, 938,511.99 and 393,606.48 is: 543,168.17
Step by Step Solution
- Step 1: Write the proportion equation
680,092.14 : 938,511.99 = 393,606.48 : x - Step 2: Convert to fraction form
680,092.14/938,511.99 = 393,606.48/x - Step 3: Cross multiply
680,092.14x = 938,511.99 × 393,606.48 - Step 4: Simplify right side
680,092.14x = 369,404,400,821.70 - Step 5: Solve for x
x = 369,404,400,821.70/680,092.14 - Step 6: Final answer
x = 543,168.17
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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.