Finding the Fourth Proportional to 638,021.00, 880,488.90 and 366,138.62
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Solution
The fourth proportional to 638,021.00, 880,488.90 and 366,138.62 is: 505,282.72
Step by Step Solution
- Step 1: Write the proportion equation
638,021.00 : 880,488.90 = 366,138.62 : x - Step 2: Convert to fraction form
638,021.00/880,488.90 = 366,138.62/x - Step 3: Cross multiply
638,021.00x = 880,488.90 × 366,138.62 - Step 4: Simplify right side
638,021.00x = 322,380,986,368.87 - Step 5: Solve for x
x = 322,380,986,368.87/638,021.00 - Step 6: Final answer
x = 505,282.72
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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.