Finding the Fourth Proportional to 1,413,987.75, 1,951,286.69 and 769,396.84
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Solution
The fourth proportional to 1,413,987.75, 1,951,286.69 and 769,396.84 is: 1,061,758.71
Step by Step Solution
- Step 1: Write the proportion equation
1,413,987.75 : 1,951,286.69 = 769,396.84 : x - Step 2: Convert to fraction form
1,413,987.75/1,951,286.69 = 769,396.84/x - Step 3: Cross multiply
1,413,987.75x = 1,951,286.69 × 769,396.84 - Step 4: Simplify right side
1,413,987.75x = 1,501,313,813,220.06 - Step 5: Solve for x
x = 1,501,313,813,220.06/1,413,987.75 - Step 6: Final answer
x = 1,061,758.71
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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.