Finding the Fourth Proportional to 393,233.48, 589,252.62 and 288,122.12
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Solution
The fourth proportional to 393,233.48, 589,252.62 and 288,122.12 is: 431,745.32
Step by Step Solution
- Step 1: Write the proportion equation
393,233.48 : 589,252.62 = 288,122.12 : x - Step 2: Convert to fraction form
393,233.48/589,252.62 = 288,122.12/x - Step 3: Cross multiply
393,233.48x = 589,252.62 × 288,122.12 - Step 4: Simplify right side
393,233.48x = 169,776,714,089.95 - Step 5: Solve for x
x = 169,776,714,089.95/393,233.48 - Step 6: Final answer
x = 431,745.32
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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.