Finding the Fourth Proportional to 1,125,941.10, 1,686,615.30 and 698,163.90
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Solution
The fourth proportional to 1,125,941.10, 1,686,615.30 and 698,163.90 is: 1,045,821.95
Step by Step Solution
- Step 1: Write the proportion equation
1,125,941.10 : 1,686,615.30 = 698,163.90 : x - Step 2: Convert to fraction form
1,125,941.10/1,686,615.30 = 698,163.90/x - Step 3: Cross multiply
1,125,941.10x = 1,686,615.30 × 698,163.90 - Step 4: Simplify right side
1,125,941.10x = 1,177,533,915,647.67 - Step 5: Solve for x
x = 1,177,533,915,647.67/1,125,941.10 - Step 6: Final answer
x = 1,045,821.95
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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.