Finding the Fourth Proportional to 858,725.20, 1,288,087.80 and 219,027.70
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Solution
The fourth proportional to 858,725.20, 1,288,087.80 and 219,027.70 is: 328,541.55
Step by Step Solution
- Step 1: Write the proportion equation
858,725.20 : 1,288,087.80 = 219,027.70 : x - Step 2: Convert to fraction form
858,725.20/1,288,087.80 = 219,027.70/x - Step 3: Cross multiply
858,725.20x = 1,288,087.80 × 219,027.70 - Step 4: Simplify right side
858,725.20x = 282,126,908,232.06 - Step 5: Solve for x
x = 282,126,908,232.06/858,725.20 - Step 6: Final answer
x = 328,541.55
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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.