Finding the Fourth Proportional to 485,557.06, 670,104.21 and 281,677.63
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Solution
The fourth proportional to 485,557.06, 670,104.21 and 281,677.63 is: 388,735.70
Step by Step Solution
- Step 1: Write the proportion equation
485,557.06 : 670,104.21 = 281,677.63 : x - Step 2: Convert to fraction form
485,557.06/670,104.21 = 281,677.63/x - Step 3: Cross multiply
485,557.06x = 670,104.21 × 281,677.63 - Step 4: Simplify right side
485,557.06x = 188,753,365,725.82 - Step 5: Solve for x
x = 188,753,365,725.82/485,557.06 - Step 6: Final answer
x = 388,735.70
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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.