Finding the Fourth Proportional to 1,313,691.75, 1,970,537.63 and 316,419.75
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Solution
The fourth proportional to 1,313,691.75, 1,970,537.63 and 316,419.75 is: 474,629.63
Step by Step Solution
- Step 1: Write the proportion equation
1,313,691.75 : 1,970,537.63 = 316,419.75 : x - Step 2: Convert to fraction form
1,313,691.75/1,970,537.63 = 316,419.75/x - Step 3: Cross multiply
1,313,691.75x = 1,970,537.63 × 316,419.75 - Step 4: Simplify right side
1,313,691.75x = 623,517,022,668.09 - Step 5: Solve for x
x = 623,517,022,668.09/1,313,691.75 - Step 6: Final answer
x = 474,629.63
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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.