Finding the Fourth Proportional to 644,814.11, 888,905.62 and 450,618.91
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Solution
The fourth proportional to 644,814.11, 888,905.62 and 450,618.91 is: 621,198.69
Step by Step Solution
- Step 1: Write the proportion equation
644,814.11 : 888,905.62 = 450,618.91 : x - Step 2: Convert to fraction form
644,814.11/888,905.62 = 450,618.91/x - Step 3: Cross multiply
644,814.11x = 888,905.62 × 450,618.91 - Step 4: Simplify right side
644,814.11x = 400,557,681,577.27 - Step 5: Solve for x
x = 400,557,681,577.27/644,814.11 - Step 6: Final answer
x = 621,198.69
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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.