Finding the Fourth Proportional to 882,991.80, 1,324,487.70 and 218,143.80
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Solution
The fourth proportional to 882,991.80, 1,324,487.70 and 218,143.80 is: 327,215.70
Step by Step Solution
- Step 1: Write the proportion equation
882,991.80 : 1,324,487.70 = 218,143.80 : x - Step 2: Convert to fraction form
882,991.80/1,324,487.70 = 218,143.80/x - Step 3: Cross multiply
882,991.80x = 1,324,487.70 × 218,143.80 - Step 4: Simplify right side
882,991.80x = 288,928,779,931.26 - Step 5: Solve for x
x = 288,928,779,931.26/882,991.80 - Step 6: Final answer
x = 327,215.70
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1.5x scale
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.