Finding the Fourth Proportional to 1,689,108.19, 2,330,969.60 and 925,189.09
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Solution
The fourth proportional to 1,689,108.19, 2,330,969.60 and 925,189.09 is: 1,276,761.11
Step by Step Solution
- Step 1: Write the proportion equation
1,689,108.19 : 2,330,969.60 = 925,189.09 : x - Step 2: Convert to fraction form
1,689,108.19/2,330,969.60 = 925,189.09/x - Step 3: Cross multiply
1,689,108.19x = 2,330,969.60 × 925,189.09 - Step 4: Simplify right side
1,689,108.19x = 2,156,587,639,527.21 - Step 5: Solve for x
x = 2,156,587,639,527.21/1,689,108.19 - Step 6: Final answer
x = 1,276,761.11
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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.