Finding the Fourth Proportional to 1,402,371.82, 2,103,912.42 and 391,492.99
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Solution
The fourth proportional to 1,402,371.82, 2,103,912.42 and 391,492.99 is: 587,338.50
Step by Step Solution
- Step 1: Write the proportion equation
1,402,371.82 : 2,103,912.42 = 391,492.99 : x - Step 2: Convert to fraction form
1,402,371.82/2,103,912.42 = 391,492.99/x - Step 3: Cross multiply
1,402,371.82x = 2,103,912.42 × 391,492.99 - Step 4: Simplify right side
1,402,371.82x = 823,666,964,003.94 - Step 5: Solve for x
x = 823,666,964,003.94/1,402,371.82 - Step 6: Final answer
x = 587,338.50
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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.