Finding the Fourth Proportional to 1,240,736.10, 1,861,104.15 and 442,043.70
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Solution
The fourth proportional to 1,240,736.10, 1,861,104.15 and 442,043.70 is: 663,065.55
Step by Step Solution
- Step 1: Write the proportion equation
1,240,736.10 : 1,861,104.15 = 442,043.70 : x - Step 2: Convert to fraction form
1,240,736.10/1,861,104.15 = 442,043.70/x - Step 3: Cross multiply
1,240,736.10x = 1,861,104.15 × 442,043.70 - Step 4: Simplify right side
1,240,736.10x = 822,689,364,551.36 - Step 5: Solve for x
x = 822,689,364,551.36/1,240,736.10 - Step 6: Final answer
x = 663,065.55
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1.5x scale
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.