Finding the Fourth Proportional to 2,379,042.09, 3,283,025.99 and 1,291,315.77
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Solution
The fourth proportional to 2,379,042.09, 3,283,025.99 and 1,291,315.77 is: 1,781,987.48
Step by Step Solution
- Step 1: Write the proportion equation
2,379,042.09 : 3,283,025.99 = 1,291,315.77 : x - Step 2: Convert to fraction form
2,379,042.09/3,283,025.99 = 1,291,315.77/x - Step 3: Cross multiply
2,379,042.09x = 3,283,025.99 × 1,291,315.77 - Step 4: Simplify right side
2,379,042.09x = 4,239,423,227,750.28 - Step 5: Solve for x
x = 4,239,423,227,750.28/2,379,042.09 - Step 6: Final answer
x = 1,781,987.48
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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.