Finding the Fourth Proportional to 1,438,344.63, 1,985,661.87 and 1,050,724.80
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Solution
The fourth proportional to 1,438,344.63, 1,985,661.87 and 1,050,724.80 is: 1,450,545.39
Step by Step Solution
- Step 1: Write the proportion equation
1,438,344.63 : 1,985,661.87 = 1,050,724.80 : x - Step 2: Convert to fraction form
1,438,344.63/1,985,661.87 = 1,050,724.80/x - Step 3: Cross multiply
1,438,344.63x = 1,985,661.87 × 1,050,724.80 - Step 4: Simplify right side
1,438,344.63x = 2,086,384,171,223.38 - Step 5: Solve for x
x = 2,086,384,171,223.38/1,438,344.63 - Step 6: Final answer
x = 1,450,545.39
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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.