Finding the Fourth Proportional to 1,189,608.99, 1,641,615.96 and 645,733.14
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Solution
The fourth proportional to 1,189,608.99, 1,641,615.96 and 645,733.14 is: 891,087.61
Step by Step Solution
- Step 1: Write the proportion equation
1,189,608.99 : 1,641,615.96 = 645,733.14 : x - Step 2: Convert to fraction form
1,189,608.99/1,641,615.96 = 645,733.14/x - Step 3: Cross multiply
1,189,608.99x = 1,641,615.96 × 645,733.14 - Step 4: Simplify right side
1,189,608.99x = 1,060,045,828,524.91 - Step 5: Solve for x
x = 1,060,045,828,524.91/1,189,608.99 - Step 6: Final answer
x = 891,087.61
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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.