Finding the Fourth Proportional to 1,259,974.91, 1,889,436.81 and 395,187.05
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Solution
The fourth proportional to 1,259,974.91, 1,889,436.81 and 395,187.05 is: 592,615.74
Step by Step Solution
- Step 1: Write the proportion equation
1,259,974.91 : 1,889,436.81 = 395,187.05 : x - Step 2: Convert to fraction form
1,259,974.91/1,889,436.81 = 395,187.05/x - Step 3: Cross multiply
1,259,974.91x = 1,889,436.81 × 395,187.05 - Step 4: Simplify right side
1,259,974.91x = 746,680,959,105.31 - Step 5: Solve for x
x = 746,680,959,105.31/1,259,974.91 - Step 6: Final answer
x = 592,615.74
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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.