Finding the Fourth Proportional to 1,615,961.88, 2,230,034.40 and 890,793.99
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Solution
The fourth proportional to 1,615,961.88, 2,230,034.40 and 890,793.99 is: 1,229,299.57
Step by Step Solution
- Step 1: Write the proportion equation
1,615,961.88 : 2,230,034.40 = 890,793.99 : x - Step 2: Convert to fraction form
1,615,961.88/2,230,034.40 = 890,793.99/x - Step 3: Cross multiply
1,615,961.88x = 2,230,034.40 × 890,793.99 - Step 4: Simplify right side
1,615,961.88x = 1,986,501,241,013.26 - Step 5: Solve for x
x = 1,986,501,241,013.26/1,615,961.88 - Step 6: Final answer
x = 1,229,299.57
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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.