Finding the Fourth Proportional to 492,886.05, 680,203.42 and 278,026.05
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Solution
The fourth proportional to 492,886.05, 680,203.42 and 278,026.05 is: 383,687.61
Step by Step Solution
- Step 1: Write the proportion equation
492,886.05 : 680,203.42 = 278,026.05 : x - Step 2: Convert to fraction form
492,886.05/680,203.42 = 278,026.05/x - Step 3: Cross multiply
492,886.05x = 680,203.42 × 278,026.05 - Step 4: Simplify right side
492,886.05x = 189,114,270,059.09 - Step 5: Solve for x
x = 189,114,270,059.09/492,886.05 - Step 6: Final answer
x = 383,687.61
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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.