Finding the Fourth Proportional to 1,382,435, 2,073,652.50 and 331,811
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Solution
The fourth proportional to 1,382,435, 2,073,652.50 and 331,811 is: 497,716.50
Step by Step Solution
- Step 1: Write the proportion equation
1,382,435 : 2,073,652.50 = 331,811 : x - Step 2: Convert to fraction form
1,382,435/2,073,652.50 = 331,811/x - Step 3: Cross multiply
1,382,435x = 2,073,652.50 × 331,811 - Step 4: Simplify right side
1,382,435x = 688,060,709,677.50 - Step 5: Solve for x
x = 688,060,709,677.50/1,382,435 - Step 6: Final answer
x = 497,716.50
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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.