Finding the Fourth Proportional to 644,821.80, 967,232.70 and 349,909.80
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Solution
The fourth proportional to 644,821.80, 967,232.70 and 349,909.80 is: 524,864.70
Step by Step Solution
- Step 1: Write the proportion equation
644,821.80 : 967,232.70 = 349,909.80 : x - Step 2: Convert to fraction form
644,821.80/967,232.70 = 349,909.80/x - Step 3: Cross multiply
644,821.80x = 967,232.70 × 349,909.80 - Step 4: Simplify right side
644,821.80x = 338,444,200,610.46 - Step 5: Solve for x
x = 338,444,200,610.46/644,821.80 - Step 6: Final answer
x = 524,864.70
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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.