Finding the Fourth Proportional to 624,546, 861,990.24 and 356,274
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Solution
The fourth proportional to 624,546, 861,990.24 and 356,274 is: 491,724.73
Step by Step Solution
- Step 1: Write the proportion equation
624,546 : 861,990.24 = 356,274 : x - Step 2: Convert to fraction form
624,546/861,990.24 = 356,274/x - Step 3: Cross multiply
624,546x = 861,990.24 × 356,274 - Step 4: Simplify right side
624,546x = 307,104,710,765.76 - Step 5: Solve for x
x = 307,104,710,765.76/624,546 - Step 6: Final answer
x = 491,724.73
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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.