Finding the Fourth Proportional to 1,818,449.20, 2,729,326.20 and 920,515.60
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Solution
The fourth proportional to 1,818,449.20, 2,729,326.20 and 920,515.60 is: 1,381,609.86
Step by Step Solution
- Step 1: Write the proportion equation
1,818,449.20 : 2,729,326.20 = 920,515.60 : x - Step 2: Convert to fraction form
1,818,449.20/2,729,326.20 = 920,515.60/x - Step 3: Cross multiply
1,818,449.20x = 2,729,326.20 × 920,515.60 - Step 4: Simplify right side
1,818,449.20x = 2,512,387,344,588.72 - Step 5: Solve for x
x = 2,512,387,344,588.72/1,818,449.20 - Step 6: Final answer
x = 1,381,609.86
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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.