Finding the Fourth Proportional to 3,860,760.70, 5,328,487.56 and 2,142,434.80
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Solution
The fourth proportional to 3,860,760.70, 5,328,487.56 and 2,142,434.80 is: 2,956,913.95
Step by Step Solution
- Step 1: Write the proportion equation
3,860,760.70 : 5,328,487.56 = 2,142,434.80 : x - Step 2: Convert to fraction form
3,860,760.70/5,328,487.56 = 2,142,434.80/x - Step 3: Cross multiply
3,860,760.70x = 5,328,487.56 × 2,142,434.80 - Step 4: Simplify right side
3,860,760.70x = 11,415,937,179,911.09 - Step 5: Solve for x
x = 11,415,937,179,911.09/3,860,760.70 - Step 6: Final answer
x = 2,956,913.95
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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.