Finding the Fourth Proportional to 1,218,310.23, 1,680,740.22 and 734,606.65
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Solution
The fourth proportional to 1,218,310.23, 1,680,740.22 and 734,606.65 is: 1,013,438.87
Step by Step Solution
- Step 1: Write the proportion equation
1,218,310.23 : 1,680,740.22 = 734,606.65 : x - Step 2: Convert to fraction form
1,218,310.23/1,680,740.22 = 734,606.65/x - Step 3: Cross multiply
1,218,310.23x = 1,680,740.22 × 734,606.65 - Step 4: Simplify right side
1,218,310.23x = 1,234,682,942,534.46 - Step 5: Solve for x
x = 1,234,682,942,534.46/1,218,310.23 - Step 6: Final answer
x = 1,013,438.87
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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.