Finding the Fourth Proportional to 2,879,890.80, 4,318,669.80 and 985,657.20
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Solution
The fourth proportional to 2,879,890.80, 4,318,669.80 and 985,657.20 is: 1,478,086.59
Step by Step Solution
- Step 1: Write the proportion equation
2,879,890.80 : 4,318,669.80 = 985,657.20 : x - Step 2: Convert to fraction form
2,879,890.80/4,318,669.80 = 985,657.20/x - Step 3: Cross multiply
2,879,890.80x = 4,318,669.80 × 985,657.20 - Step 4: Simplify right side
2,879,890.80x = 4,256,727,982,792.56 - Step 5: Solve for x
x = 4,256,727,982,792.56/2,879,890.80 - Step 6: Final answer
x = 1,478,086.59
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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.