Finding the Fourth Proportional to 394,658.56, 544,678.68 and 258,806.80
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Solution
The fourth proportional to 394,658.56, 544,678.68 and 258,806.80 is: 357,186.09
Step by Step Solution
- Step 1: Write the proportion equation
394,658.56 : 544,678.68 = 258,806.80 : x - Step 2: Convert to fraction form
394,658.56/544,678.68 = 258,806.80/x - Step 3: Cross multiply
394,658.56x = 544,678.68 × 258,806.80 - Step 4: Simplify right side
394,658.56x = 140,966,546,199.02 - Step 5: Solve for x
x = 140,966,546,199.02/394,658.56 - Step 6: Final answer
x = 357,186.09
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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.