Finding the Fourth Proportional to 1,961,293.41, 2,706,804.06 and 1,187,350.69
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Solution
The fourth proportional to 1,961,293.41, 2,706,804.06 and 1,187,350.69 is: 1,638,676.63
Step by Step Solution
- Step 1: Write the proportion equation
1,961,293.41 : 2,706,804.06 = 1,187,350.69 : x - Step 2: Convert to fraction form
1,961,293.41/2,706,804.06 = 1,187,350.69/x - Step 3: Cross multiply
1,961,293.41x = 2,706,804.06 × 1,187,350.69 - Step 4: Simplify right side
1,961,293.41x = 3,213,925,668,335.80 - Step 5: Solve for x
x = 3,213,925,668,335.80/1,961,293.41 - Step 6: Final answer
x = 1,638,676.63
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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.