Finding the Fourth Proportional to 520,751.80, 781,122.05 and 395,163.32
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Solution
The fourth proportional to 520,751.80, 781,122.05 and 395,163.32 is: 592,740.70
Step by Step Solution
- Step 1: Write the proportion equation
520,751.80 : 781,122.05 = 395,163.32 : x - Step 2: Convert to fraction form
520,751.80/781,122.05 = 395,163.32/x - Step 3: Cross multiply
520,751.80x = 781,122.05 × 395,163.32 - Step 4: Simplify right side
520,751.80x = 308,670,783,591.11 - Step 5: Solve for x
x = 308,670,783,591.11/520,751.80 - Step 6: Final answer
x = 592,740.70
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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.