Finding the Fourth Proportional to 394,609.28, 544,708.89 and 258,651.98
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Solution
The fourth proportional to 394,609.28, 544,708.89 and 258,651.98 is: 357,036.80
Step by Step Solution
- Step 1: Write the proportion equation
394,609.28 : 544,708.89 = 258,651.98 : x - Step 2: Convert to fraction form
394,609.28/544,708.89 = 258,651.98/x - Step 3: Cross multiply
394,609.28x = 544,708.89 × 258,651.98 - Step 4: Simplify right side
394,609.28x = 140,890,034,283.87 - Step 5: Solve for x
x = 140,890,034,283.87/394,609.28 - Step 6: Final answer
x = 357,036.80
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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.