Finding the Fourth Proportional to 2,138,132.80, 2,950,623.96 and 1,171,297.88
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Solution
The fourth proportional to 2,138,132.80, 2,950,623.96 and 1,171,297.88 is: 1,616,391.46
Step by Step Solution
- Step 1: Write the proportion equation
2,138,132.80 : 2,950,623.96 = 1,171,297.88 : x - Step 2: Convert to fraction form
2,138,132.80/2,950,623.96 = 1,171,297.88/x - Step 3: Cross multiply
2,138,132.80x = 2,950,623.96 × 1,171,297.88 - Step 4: Simplify right side
2,138,132.80x = 3,456,059,589,025.20 - Step 5: Solve for x
x = 3,456,059,589,025.20/2,138,132.80 - Step 6: Final answer
x = 1,616,391.46
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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.