Finding the Fourth Proportional to 753,326.91, 1,129,990.35 and 332,518.95
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Solution
The fourth proportional to 753,326.91, 1,129,990.35 and 332,518.95 is: 498,778.42
Step by Step Solution
- Step 1: Write the proportion equation
753,326.91 : 1,129,990.35 = 332,518.95 : x - Step 2: Convert to fraction form
753,326.91/1,129,990.35 = 332,518.95/x - Step 3: Cross multiply
753,326.91x = 1,129,990.35 × 332,518.95 - Step 4: Simplify right side
753,326.91x = 375,743,204,692.13 - Step 5: Solve for x
x = 375,743,204,692.13/753,326.91 - Step 6: Final answer
x = 498,778.42
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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.