Finding the Fourth Proportional to 1,128,481.22, 1,693,013.44 and 418,711.70
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Solution
The fourth proportional to 1,128,481.22, 1,693,013.44 and 418,711.70 is: 628,175.75
Step by Step Solution
- Step 1: Write the proportion equation
1,128,481.22 : 1,693,013.44 = 418,711.70 : x - Step 2: Convert to fraction form
1,128,481.22/1,693,013.44 = 418,711.70/x - Step 3: Cross multiply
1,128,481.22x = 1,693,013.44 × 418,711.70 - Step 4: Simplify right side
1,128,481.22x = 708,884,535,585.25 - Step 5: Solve for x
x = 708,884,535,585.25/1,128,481.22 - Step 6: Final answer
x = 628,175.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.