Finding the Fourth Proportional to 463,394.70, 639,538.56 and 282,212.82
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Solution
The fourth proportional to 463,394.70, 639,538.56 and 282,212.82 is: 389,486.50
Step by Step Solution
- Step 1: Write the proportion equation
463,394.70 : 639,538.56 = 282,212.82 : x - Step 2: Convert to fraction form
463,394.70/639,538.56 = 282,212.82/x - Step 3: Cross multiply
463,394.70x = 639,538.56 × 282,212.82 - Step 4: Simplify right side
463,394.70x = 180,485,980,516.34 - Step 5: Solve for x
x = 180,485,980,516.34/463,394.70 - Step 6: Final answer
x = 389,486.50
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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.