Finding the Fourth Proportional to 578,761.60, 867,850.80 and 342,176.80
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Solution
The fourth proportional to 578,761.60, 867,850.80 and 342,176.80 is: 513,092.80
Step by Step Solution
- Step 1: Write the proportion equation
578,761.60 : 867,850.80 = 342,176.80 : x - Step 2: Convert to fraction form
578,761.60/867,850.80 = 342,176.80/x - Step 3: Cross multiply
578,761.60x = 867,850.80 × 342,176.80 - Step 4: Simplify right side
578,761.60x = 296,958,409,621.44 - Step 5: Solve for x
x = 296,958,409,621.44/578,761.60 - Step 6: Final answer
x = 513,092.80
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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.