Finding the Fourth Proportional to 2,139,764.51, 2,952,910.70 and 1,159,734.84
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Solution
The fourth proportional to 2,139,764.51, 2,952,910.70 and 1,159,734.84 is: 1,600,453.42
Step by Step Solution
- Step 1: Write the proportion equation
2,139,764.51 : 2,952,910.70 = 1,159,734.84 : x - Step 2: Convert to fraction form
2,139,764.51/2,952,910.70 = 1,159,734.84/x - Step 3: Cross multiply
2,139,764.51x = 2,952,910.70 × 1,159,734.84 - Step 4: Simplify right side
2,139,764.51x = 3,424,593,418,198.79 - Step 5: Solve for x
x = 3,424,593,418,198.79/2,139,764.51 - Step 6: Final answer
x = 1,600,453.42
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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.