Finding the Fourth Proportional to 1,259,838.11, 1,889,764.10 and 313,208.84
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Solution
The fourth proportional to 1,259,838.11, 1,889,764.10 and 313,208.84 is: 469,814.98
Step by Step Solution
- Step 1: Write the proportion equation
1,259,838.11 : 1,889,764.10 = 313,208.84 : x - Step 2: Convert to fraction form
1,259,838.11/1,889,764.10 = 313,208.84/x - Step 3: Cross multiply
1,259,838.11x = 1,889,764.10 × 313,208.84 - Step 4: Simplify right side
1,259,838.11x = 591,890,810,619.78 - Step 5: Solve for x
x = 591,890,810,619.78/1,259,838.11 - Step 6: Final answer
x = 469,814.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.