Finding the Fourth Proportional to 501,257.40, 691,771.92 and 286,392.84
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Solution
The fourth proportional to 501,257.40, 691,771.92 and 286,392.84 is: 395,243.09
Step by Step Solution
- Step 1: Write the proportion equation
501,257.40 : 691,771.92 = 286,392.84 : x - Step 2: Convert to fraction form
501,257.40/691,771.92 = 286,392.84/x - Step 3: Cross multiply
501,257.40x = 691,771.92 × 286,392.84 - Step 4: Simplify right side
501,257.40x = 198,118,524,801.05 - Step 5: Solve for x
x = 198,118,524,801.05/501,257.40 - Step 6: Final answer
x = 395,243.09
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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.