Finding the Fourth Proportional to 2,102,859.21, 2,901,876.48 and 1,328,903.63
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Solution
The fourth proportional to 2,102,859.21, 2,901,876.48 and 1,328,903.63 is: 1,833,843.25
Step by Step Solution
- Step 1: Write the proportion equation
2,102,859.21 : 2,901,876.48 = 1,328,903.63 : x - Step 2: Convert to fraction form
2,102,859.21/2,901,876.48 = 1,328,903.63/x - Step 3: Cross multiply
2,102,859.21x = 2,901,876.48 × 1,328,903.63 - Step 4: Simplify right side
2,102,859.21x = 3,856,314,173,574.24 - Step 5: Solve for x
x = 3,856,314,173,574.24/2,102,859.21 - Step 6: Final answer
x = 1,833,843.25
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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.