Finding the Fourth Proportional to 4,257,205.80, 6,390,474.30 and 2,661,570.60
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Solution
The fourth proportional to 4,257,205.80, 6,390,474.30 and 2,661,570.60 is: 3,995,272.80
Step by Step Solution
- Step 1: Write the proportion equation
4,257,205.80 : 6,390,474.30 = 2,661,570.60 : x - Step 2: Convert to fraction form
4,257,205.80/6,390,474.30 = 2,661,570.60/x - Step 3: Cross multiply
4,257,205.80x = 6,390,474.30 × 2,661,570.60 - Step 4: Simplify right side
4,257,205.80x = 17,008,698,516,935.58 - Step 5: Solve for x
x = 17,008,698,516,935.58/4,257,205.80 - Step 6: Final answer
x = 3,995,272.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.