Finding the Fourth Proportional to 4,852,572.21, 7,278,225.84 and 1,440,790.20
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Solution
The fourth proportional to 4,852,572.21, 7,278,225.84 and 1,440,790.20 is: 2,160,997.51
Step by Step Solution
- Step 1: Write the proportion equation
4,852,572.21 : 7,278,225.84 = 1,440,790.20 : x - Step 2: Convert to fraction form
4,852,572.21/7,278,225.84 = 1,440,790.20/x - Step 3: Cross multiply
4,852,572.21x = 7,278,225.84 × 1,440,790.20 - Step 4: Simplify right side
4,852,572.21x = 10,486,396,463,658.77 - Step 5: Solve for x
x = 10,486,396,463,658.77/4,852,572.21 - Step 6: Final answer
x = 2,160,997.51
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1.5x scale
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.