Finding the Fourth Proportional to 1,164,889.68, 1,608,043.80 and 783,137.88
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Solution
The fourth proportional to 1,164,889.68, 1,608,043.80 and 783,137.88 is: 1,081,063.76
Step by Step Solution
- Step 1: Write the proportion equation
1,164,889.68 : 1,608,043.80 = 783,137.88 : x - Step 2: Convert to fraction form
1,164,889.68/1,608,043.80 = 783,137.88/x - Step 3: Cross multiply
1,164,889.68x = 1,608,043.80 × 783,137.88 - Step 4: Simplify right side
1,164,889.68x = 1,259,320,012,479.14 - Step 5: Solve for x
x = 1,259,320,012,479.14/1,164,889.68 - Step 6: Final answer
x = 1,081,063.76
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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.