Finding the Fourth Proportional to 551,236.36, 760,696.50 and 309,520.84
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Solution
The fourth proportional to 551,236.36, 760,696.50 and 309,520.84 is: 427,133.33
Step by Step Solution
- Step 1: Write the proportion equation
551,236.36 : 760,696.50 = 309,520.84 : x - Step 2: Convert to fraction form
551,236.36/760,696.50 = 309,520.84/x - Step 3: Cross multiply
551,236.36x = 760,696.50 × 309,520.84 - Step 4: Simplify right side
551,236.36x = 235,451,419,665.06 - Step 5: Solve for x
x = 235,451,419,665.06/551,236.36 - Step 6: Final answer
x = 427,133.33
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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.