Finding the Fourth Proportional to 720,789.60, 1,081,722.96 and 271,953.12
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Solution
The fourth proportional to 720,789.60, 1,081,722.96 and 271,953.12 is: 408,132.88
Step by Step Solution
- Step 1: Write the proportion equation
720,789.60 : 1,081,722.96 = 271,953.12 : x - Step 2: Convert to fraction form
720,789.60/1,081,722.96 = 271,953.12/x - Step 3: Cross multiply
720,789.60x = 1,081,722.96 × 271,953.12 - Step 4: Simplify right side
720,789.60x = 294,177,933,947.64 - Step 5: Solve for x
x = 294,177,933,947.64/720,789.60 - Step 6: Final answer
x = 408,132.88
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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.