Finding the Fourth Proportional to 2,167,265, 2,988,762.56 and 1,295,961.26
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Solution
The fourth proportional to 2,167,265, 2,988,762.56 and 1,295,961.26 is: 1,787,192.84
Step by Step Solution
- Step 1: Write the proportion equation
2,167,265 : 2,988,762.56 = 1,295,961.26 : x - Step 2: Convert to fraction form
2,167,265/2,988,762.56 = 1,295,961.26/x - Step 3: Cross multiply
2,167,265x = 2,988,762.56 × 1,295,961.26 - Step 4: Simplify right side
2,167,265x = 3,873,320,493,098.43 - Step 5: Solve for x
x = 3,873,320,493,098.43/2,167,265 - Step 6: Final answer
x = 1,787,192.84
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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.