Finding the Fourth Proportional to 4,279,868.21, 5,905,587.36 and 2,602,595.72
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Solution
The fourth proportional to 4,279,868.21, 5,905,587.36 and 2,602,595.72 is: 3,591,198.52
Step by Step Solution
- Step 1: Write the proportion equation
4,279,868.21 : 5,905,587.36 = 2,602,595.72 : x - Step 2: Convert to fraction form
4,279,868.21/5,905,587.36 = 2,602,595.72/x - Step 3: Cross multiply
4,279,868.21x = 5,905,587.36 × 2,602,595.72 - Step 4: Simplify right side
4,279,868.21x = 15,369,856,357,694.16 - Step 5: Solve for x
x = 15,369,856,357,694.16/4,279,868.21 - Step 6: Final answer
x = 3,591,198.52
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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.