Finding the Fourth Proportional to 393,231.48, 589,249.62 and 288,120.12
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Solution
The fourth proportional to 393,231.48, 589,249.62 and 288,120.12 is: 431,742.32
Step by Step Solution
- Step 1: Write the proportion equation
393,231.48 : 589,249.62 = 288,120.12 : x - Step 2: Convert to fraction form
393,231.48/589,249.62 = 288,120.12/x - Step 3: Cross multiply
393,231.48x = 589,249.62 × 288,120.12 - Step 4: Simplify right side
393,231.48x = 169,774,671,224.35 - Step 5: Solve for x
x = 169,774,671,224.35/393,231.48 - Step 6: Final answer
x = 431,742.32
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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.