Finding the Fourth Proportional to 2,486,548.32, 3,431,431.62 and 1,398,820.68
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Solution
The fourth proportional to 2,486,548.32, 3,431,431.62 and 1,398,820.68 is: 1,930,369.69
Step by Step Solution
- Step 1: Write the proportion equation
2,486,548.32 : 3,431,431.62 = 1,398,820.68 : x - Step 2: Convert to fraction form
2,486,548.32/3,431,431.62 = 1,398,820.68/x - Step 3: Cross multiply
2,486,548.32x = 3,431,431.62 × 1,398,820.68 - Step 4: Simplify right side
2,486,548.32x = 4,799,957,512,061.90 - Step 5: Solve for x
x = 4,799,957,512,061.90/2,486,548.32 - Step 6: Final answer
x = 1,930,369.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.