Finding the Fourth Proportional to 1,153,379.16, 1,591,632.36 and 637,121.92
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Solution
The fourth proportional to 1,153,379.16, 1,591,632.36 and 637,121.92 is: 879,211.19
Step by Step Solution
- Step 1: Write the proportion equation
1,153,379.16 : 1,591,632.36 = 637,121.92 : x - Step 2: Convert to fraction form
1,153,379.16/1,591,632.36 = 637,121.92/x - Step 3: Cross multiply
1,153,379.16x = 1,591,632.36 × 637,121.92 - Step 4: Simplify right side
1,153,379.16x = 1,014,063,865,137.33 - Step 5: Solve for x
x = 1,014,063,865,137.33/1,153,379.16 - Step 6: Final answer
x = 879,211.19
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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.