Finding the Fourth Proportional to 2,275,367.20, 3,412,129.20 and 778,688.80
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Solution
The fourth proportional to 2,275,367.20, 3,412,129.20 and 778,688.80 is: 1,167,717.80
Step by Step Solution
- Step 1: Write the proportion equation
2,275,367.20 : 3,412,129.20 = 778,688.80 : x - Step 2: Convert to fraction form
2,275,367.20/3,412,129.20 = 778,688.80/x - Step 3: Cross multiply
2,275,367.20x = 3,412,129.20 × 778,688.80 - Step 4: Simplify right side
2,275,367.20x = 2,656,986,792,192.96 - Step 5: Solve for x
x = 2,656,986,792,192.96/2,275,367.20 - Step 6: Final answer
x = 1,167,717.80
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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.