Finding the Fourth Proportional to 492,517.65, 679,645.08 and 285,770.06
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Solution
The fourth proportional to 492,517.65, 679,645.08 and 285,770.06 is: 394,345.70
Step by Step Solution
- Step 1: Write the proportion equation
492,517.65 : 679,645.08 = 285,770.06 : x - Step 2: Convert to fraction form
492,517.65/679,645.08 = 285,770.06/x - Step 3: Cross multiply
492,517.65x = 679,645.08 × 285,770.06 - Step 4: Simplify right side
492,517.65x = 194,222,215,290.31 - Step 5: Solve for x
x = 194,222,215,290.31/492,517.65 - Step 6: Final answer
x = 394,345.70
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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.