Finding the Fourth Proportional to 2,021,398.49, 2,790,788.83 and 1,286,767.26
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Solution
The fourth proportional to 2,021,398.49, 2,790,788.83 and 1,286,767.26 is: 1,776,540.21
Step by Step Solution
- Step 1: Write the proportion equation
2,021,398.49 : 2,790,788.83 = 1,286,767.26 : x - Step 2: Convert to fraction form
2,021,398.49/2,790,788.83 = 1,286,767.26/x - Step 3: Cross multiply
2,021,398.49x = 2,790,788.83 × 1,286,767.26 - Step 4: Simplify right side
2,021,398.49x = 3,591,095,696,560.84 - Step 5: Solve for x
x = 3,591,095,696,560.84/2,021,398.49 - Step 6: Final answer
x = 1,776,540.21
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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.