Finding the Fourth Proportional to 2,138,279.21, 2,950,701.30 and 1,171,241.13
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Solution
The fourth proportional to 2,138,279.21, 2,950,701.30 and 1,171,241.13 is: 1,616,244.84
Step by Step Solution
- Step 1: Write the proportion equation
2,138,279.21 : 2,950,701.30 = 1,171,241.13 : x - Step 2: Convert to fraction form
2,138,279.21/2,950,701.30 = 1,171,241.13/x - Step 3: Cross multiply
2,138,279.21x = 2,950,701.30 × 1,171,241.13 - Step 4: Simplify right side
2,138,279.21x = 3,455,982,724,904.47 - Step 5: Solve for x
x = 3,455,982,724,904.47/2,138,279.21 - Step 6: Final answer
x = 1,616,244.84
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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.