Finding the Fourth Proportional to 394,842.60, 544,881.06 and 213,554.75
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Solution
The fourth proportional to 394,842.60, 544,881.06 and 213,554.75 is: 294,704.61
Step by Step Solution
- Step 1: Write the proportion equation
394,842.60 : 544,881.06 = 213,554.75 : x - Step 2: Convert to fraction form
394,842.60/544,881.06 = 213,554.75/x - Step 3: Cross multiply
394,842.60x = 544,881.06 × 213,554.75 - Step 4: Simplify right side
394,842.60x = 116,361,935,823.63 - Step 5: Solve for x
x = 116,361,935,823.63/394,842.60 - Step 6: Final answer
x = 294,704.61
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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.