Finding the Fourth Proportional to 661,233.96, 991,246.14 and 287,121.96
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Solution
The fourth proportional to 661,233.96, 991,246.14 and 287,121.96 is: 430,420.32
Step by Step Solution
- Step 1: Write the proportion equation
661,233.96 : 991,246.14 = 287,121.96 : x - Step 2: Convert to fraction form
661,233.96/991,246.14 = 287,121.96/x - Step 3: Cross multiply
661,233.96x = 991,246.14 × 287,121.96 - Step 4: Simplify right side
661,233.96x = 284,608,534,559.23 - Step 5: Solve for x
x = 284,608,534,559.23/661,233.96 - Step 6: Final answer
x = 430,420.32
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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.