Finding the Fourth Proportional to 1,257,872.64, 1,735,839.36 and 684,919.68
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Solution
The fourth proportional to 1,257,872.64, 1,735,839.36 and 684,919.68 is: 945,175.61
Step by Step Solution
- Step 1: Write the proportion equation
1,257,872.64 : 1,735,839.36 = 684,919.68 : x - Step 2: Convert to fraction form
1,257,872.64/1,735,839.36 = 684,919.68/x - Step 3: Cross multiply
1,257,872.64x = 1,735,839.36 × 684,919.68 - Step 4: Simplify right side
1,257,872.64x = 1,188,910,538,982.61 - Step 5: Solve for x
x = 1,188,910,538,982.61/1,257,872.64 - Step 6: Final answer
x = 945,175.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.