Finding the Fourth Proportional to 515,383.29, 711,204.94 and 285,938.14
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Solution
The fourth proportional to 515,383.29, 711,204.94 and 285,938.14 is: 394,581.32
Step by Step Solution
- Step 1: Write the proportion equation
515,383.29 : 711,204.94 = 285,938.14 : x - Step 2: Convert to fraction form
515,383.29/711,204.94 = 285,938.14/x - Step 3: Cross multiply
515,383.29x = 711,204.94 × 285,938.14 - Step 4: Simplify right side
515,383.29x = 203,360,617,702.41 - Step 5: Solve for x
x = 203,360,617,702.41/515,383.29 - Step 6: Final answer
x = 394,581.32
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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.