Finding the Fourth Proportional to 753,321.87, 1,129,982.81 and 332,513.91
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Solution
The fourth proportional to 753,321.87, 1,129,982.81 and 332,513.91 is: 498,770.87
Step by Step Solution
- Step 1: Write the proportion equation
753,321.87 : 1,129,982.81 = 332,513.91 : x - Step 2: Convert to fraction form
753,321.87/1,129,982.81 = 332,513.91/x - Step 3: Cross multiply
753,321.87x = 1,129,982.81 × 332,513.91 - Step 4: Simplify right side
753,321.87x = 375,735,000,723.32 - Step 5: Solve for x
x = 375,735,000,723.32/753,321.87 - Step 6: Final answer
x = 498,770.87
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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.