Finding the Fourth Proportional to 694,609.20, 1,042,259.40 and 395,319.60
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Solution
The fourth proportional to 694,609.20, 1,042,259.40 and 395,319.60 is: 593,176.09
Step by Step Solution
- Step 1: Write the proportion equation
694,609.20 : 1,042,259.40 = 395,319.60 : x - Step 2: Convert to fraction form
694,609.20/1,042,259.40 = 395,319.60/x - Step 3: Cross multiply
694,609.20x = 1,042,259.40 × 395,319.60 - Step 4: Simplify right side
694,609.20x = 412,025,569,104.24 - Step 5: Solve for x
x = 412,025,569,104.24/694,609.20 - Step 6: Final answer
x = 593,176.09
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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.