Finding the Fourth Proportional to 816,871.38, 1,225,423.74 and 255,949.62
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Solution
The fourth proportional to 816,871.38, 1,225,423.74 and 255,949.62 is: 383,960.99
Step by Step Solution
- Step 1: Write the proportion equation
816,871.38 : 1,225,423.74 = 255,949.62 : x - Step 2: Convert to fraction form
816,871.38/1,225,423.74 = 255,949.62/x - Step 3: Cross multiply
816,871.38x = 1,225,423.74 × 255,949.62 - Step 4: Simplify right side
816,871.38x = 313,646,740,591.98 - Step 5: Solve for x
x = 313,646,740,591.98/816,871.38 - Step 6: Final answer
x = 383,960.99
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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.