Finding the Fourth Proportional to 694,312.92, 1,040,124.30 and 393,884.70
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Solution
The fourth proportional to 694,312.92, 1,040,124.30 and 393,884.70 is: 590,063.98
Step by Step Solution
- Step 1: Write the proportion equation
694,312.92 : 1,040,124.30 = 393,884.70 : x - Step 2: Convert to fraction form
694,312.92/1,040,124.30 = 393,884.70/x - Step 3: Cross multiply
694,312.92x = 1,040,124.30 × 393,884.70 - Step 4: Simplify right side
694,312.92x = 409,689,047,868.21 - Step 5: Solve for x
x = 409,689,047,868.21/694,312.92 - Step 6: Final answer
x = 590,063.98
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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.