Finding the Fourth Proportional to 539,618.10, 809,362.68 and 419,794.65
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Solution
The fourth proportional to 539,618.10, 809,362.68 and 419,794.65 is: 629,641.82
Step by Step Solution
- Step 1: Write the proportion equation
539,618.10 : 809,362.68 = 419,794.65 : x - Step 2: Convert to fraction form
539,618.10/809,362.68 = 419,794.65/x - Step 3: Cross multiply
539,618.10x = 809,362.68 × 419,794.65 - Step 4: Simplify right side
539,618.10x = 339,766,123,760.78 - Step 5: Solve for x
x = 339,766,123,760.78/539,618.10 - Step 6: Final answer
x = 629,641.82
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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.