Finding the Fourth Proportional to 531,409.36, 797,286.16 and 318,143.92
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Solution
The fourth proportional to 531,409.36, 797,286.16 and 318,143.92 is: 477,318.92
Step by Step Solution
- Step 1: Write the proportion equation
531,409.36 : 797,286.16 = 318,143.92 : x - Step 2: Convert to fraction form
531,409.36/797,286.16 = 318,143.92/x - Step 3: Cross multiply
531,409.36x = 797,286.16 × 318,143.92 - Step 4: Simplify right side
531,409.36x = 253,651,744,304.15 - Step 5: Solve for x
x = 253,651,744,304.15/531,409.36 - Step 6: Final answer
x = 477,318.92
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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.