Finding the Fourth Proportional to 548,859.80, 823,808.10 and 338,907.80
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Solution
The fourth proportional to 548,859.80, 823,808.10 and 338,907.80 is: 508,681.80
Step by Step Solution
- Step 1: Write the proportion equation
548,859.80 : 823,808.10 = 338,907.80 : x - Step 2: Convert to fraction form
548,859.80/823,808.10 = 338,907.80/x - Step 3: Cross multiply
548,859.80x = 823,808.10 × 338,907.80 - Step 4: Simplify right side
548,859.80x = 279,194,990,793.18 - Step 5: Solve for x
x = 279,194,990,793.18/548,859.80 - Step 6: Final answer
x = 508,681.80
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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.