Finding the Fourth Proportional to 721,941.69, 996,291.29 and 395,249.19
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Solution
The fourth proportional to 721,941.69, 996,291.29 and 395,249.19 is: 545,450.32
Step by Step Solution
- Step 1: Write the proportion equation
721,941.69 : 996,291.29 = 395,249.19 : x - Step 2: Convert to fraction form
721,941.69/996,291.29 = 395,249.19/x - Step 3: Cross multiply
721,941.69x = 996,291.29 × 395,249.19 - Step 4: Simplify right side
721,941.69x = 393,783,325,376.56 - Step 5: Solve for x
x = 393,783,325,376.56/721,941.69 - Step 6: Final answer
x = 545,450.32
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1.5x scale
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.