Finding the Fourth Proportional to 1,318,476.48, 1,819,486.56 and 745,629.12
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Solution
The fourth proportional to 1,318,476.48, 1,819,486.56 and 745,629.12 is: 1,028,961.97
Step by Step Solution
- Step 1: Write the proportion equation
1,318,476.48 : 1,819,486.56 = 745,629.12 : x - Step 2: Convert to fraction form
1,318,476.48/1,819,486.56 = 745,629.12/x - Step 3: Cross multiply
1,318,476.48x = 1,819,486.56 × 745,629.12 - Step 4: Simplify right side
1,318,476.48x = 1,356,662,162,584.63 - Step 5: Solve for x
x = 1,356,662,162,584.63/1,318,476.48 - Step 6: Final answer
x = 1,028,961.97
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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.