Finding the Fourth Proportional to 781,416.76, 1,171,891.86 and 332,135.68
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Solution
The fourth proportional to 781,416.76, 1,171,891.86 and 332,135.68 is: 498,104.37
Step by Step Solution
- Step 1: Write the proportion equation
781,416.76 : 1,171,891.86 = 332,135.68 : x - Step 2: Convert to fraction form
781,416.76/1,171,891.86 = 332,135.68/x - Step 3: Cross multiply
781,416.76x = 1,171,891.86 × 332,135.68 - Step 4: Simplify right side
781,416.76x = 389,227,099,807.57 - Step 5: Solve for x
x = 389,227,099,807.57/781,416.76 - Step 6: Final answer
x = 498,104.37
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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.