Finding the Fourth Proportional to 1,917,342.84, 2,646,891.84 and 1,192,424.10
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Solution
The fourth proportional to 1,917,342.84, 2,646,891.84 and 1,192,424.10 is: 1,646,141.49
Step by Step Solution
- Step 1: Write the proportion equation
1,917,342.84 : 2,646,891.84 = 1,192,424.10 : x - Step 2: Convert to fraction form
1,917,342.84/2,646,891.84 = 1,192,424.10/x - Step 3: Cross multiply
1,917,342.84x = 2,646,891.84 × 1,192,424.10 - Step 4: Simplify right side
1,917,342.84x = 3,156,217,600,912.76 - Step 5: Solve for x
x = 3,156,217,600,912.76/1,917,342.84 - Step 6: Final answer
x = 1,646,141.49
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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.