Finding the Fourth Proportional to 691,295.40, 1,036,943.10 and 218,125.80
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Solution
The fourth proportional to 691,295.40, 1,036,943.10 and 218,125.80 is: 327,188.70
Step by Step Solution
- Step 1: Write the proportion equation
691,295.40 : 1,036,943.10 = 218,125.80 : x - Step 2: Convert to fraction form
691,295.40/1,036,943.10 = 218,125.80/x - Step 3: Cross multiply
691,295.40x = 1,036,943.10 × 218,125.80 - Step 4: Simplify right side
691,295.40x = 226,184,043,241.98 - Step 5: Solve for x
x = 226,184,043,241.98/691,295.40 - Step 6: Final answer
x = 327,188.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.