Finding the Fourth Proportional to 1,238,479.28, 1,858,244.92 and 676,857.68
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Solution
The fourth proportional to 1,238,479.28, 1,858,244.92 and 676,857.68 is: 1,015,573.99
Step by Step Solution
- Step 1: Write the proportion equation
1,238,479.28 : 1,858,244.92 = 676,857.68 : x - Step 2: Convert to fraction form
1,238,479.28/1,858,244.92 = 676,857.68/x - Step 3: Cross multiply
1,238,479.28x = 1,858,244.92 × 676,857.68 - Step 4: Simplify right side
1,238,479.28x = 1,257,767,345,422.99 - Step 5: Solve for x
x = 1,257,767,345,422.99/1,238,479.28 - Step 6: Final answer
x = 1,015,573.99
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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.