Finding the Fourth Proportional to 1,415,228.05, 2,120,878.09 and 644,843.04
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Solution
The fourth proportional to 1,415,228.05, 2,120,878.09 and 644,843.04 is: 966,369.68
Step by Step Solution
- Step 1: Write the proportion equation
1,415,228.05 : 2,120,878.09 = 644,843.04 : x - Step 2: Convert to fraction form
1,415,228.05/2,120,878.09 = 644,843.04/x - Step 3: Cross multiply
1,415,228.05x = 2,120,878.09 × 644,843.04 - Step 4: Simplify right side
1,415,228.05x = 1,367,633,475,024.99 - Step 5: Solve for x
x = 1,367,633,475,024.99/1,415,228.05 - Step 6: Final answer
x = 966,369.68
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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.