Finding the Fourth Proportional to 1,340,785.40, 2,011,226.70 and 394,251.80
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Solution
The fourth proportional to 1,340,785.40, 2,011,226.70 and 394,251.80 is: 591,391.99
Step by Step Solution
- Step 1: Write the proportion equation
1,340,785.40 : 2,011,226.70 = 394,251.80 : x - Step 2: Convert to fraction form
1,340,785.40/2,011,226.70 = 394,251.80/x - Step 3: Cross multiply
1,340,785.40x = 2,011,226.70 × 394,251.80 - Step 4: Simplify right side
1,340,785.40x = 792,929,746,683.06 - Step 5: Solve for x
x = 792,929,746,683.06/1,340,785.40 - Step 6: Final answer
x = 591,391.99
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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.