Finding the Fourth Proportional to 1,207,402.35, 1,811,103.53 and 1,116,163.95
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Solution
The fourth proportional to 1,207,402.35, 1,811,103.53 and 1,116,163.95 is: 1,674,245.93
Step by Step Solution
- Step 1: Write the proportion equation
1,207,402.35 : 1,811,103.53 = 1,116,163.95 : x - Step 2: Convert to fraction form
1,207,402.35/1,811,103.53 = 1,116,163.95/x - Step 3: Cross multiply
1,207,402.35x = 1,811,103.53 × 1,116,163.95 - Step 4: Simplify right side
1,207,402.35x = 2,021,488,464,322.92 - Step 5: Solve for x
x = 2,021,488,464,322.92/1,207,402.35 - Step 6: Final answer
x = 1,674,245.93
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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.