Finding the Fourth Proportional to 1,117,719.68, 1,675,639.10 and 486,157.82
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Solution
The fourth proportional to 1,117,719.68, 1,675,639.10 and 486,157.82 is: 728,827.69
Step by Step Solution
- Step 1: Write the proportion equation
1,117,719.68 : 1,675,639.10 = 486,157.82 : x - Step 2: Convert to fraction form
1,117,719.68/1,675,639.10 = 486,157.82/x - Step 3: Cross multiply
1,117,719.68x = 1,675,639.10 × 486,157.82 - Step 4: Simplify right side
1,117,719.68x = 814,625,044,799.96 - Step 5: Solve for x
x = 814,625,044,799.96/1,117,719.68 - Step 6: Final answer
x = 728,827.69
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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.