Finding the Fourth Proportional to 1,646,642.70, 2,469,964.05 and 847,658.70
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Solution
The fourth proportional to 1,646,642.70, 2,469,964.05 and 847,658.70 is: 1,271,488.05
Step by Step Solution
- Step 1: Write the proportion equation
1,646,642.70 : 2,469,964.05 = 847,658.70 : x - Step 2: Convert to fraction form
1,646,642.70/2,469,964.05 = 847,658.70/x - Step 3: Cross multiply
1,646,642.70x = 2,469,964.05 × 847,658.70 - Step 4: Simplify right side
1,646,642.70x = 2,093,686,515,669.73 - Step 5: Solve for x
x = 2,093,686,515,669.73/1,646,642.70 - Step 6: Final answer
x = 1,271,488.05
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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.