Finding the Fourth Proportional to 1,318,148.49, 1,974,029.79 and 912,203.19
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Solution
The fourth proportional to 1,318,148.49, 1,974,029.79 and 912,203.19 is: 1,366,095.15
Step by Step Solution
- Step 1: Write the proportion equation
1,318,148.49 : 1,974,029.79 = 912,203.19 : x - Step 2: Convert to fraction form
1,318,148.49/1,974,029.79 = 912,203.19/x - Step 3: Cross multiply
1,318,148.49x = 1,974,029.79 × 912,203.19 - Step 4: Simplify right side
1,318,148.49x = 1,800,716,261,912.22 - Step 5: Solve for x
x = 1,800,716,261,912.22/1,318,148.49 - Step 6: Final answer
x = 1,366,095.15
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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.