Finding the Fourth Proportional to 539,619.10, 809,364.18 and 419,795.65
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Solution
The fourth proportional to 539,619.10, 809,364.18 and 419,795.65 is: 629,643.32
Step by Step Solution
- Step 1: Write the proportion equation
539,619.10 : 809,364.18 = 419,795.65 : x - Step 2: Convert to fraction form
539,619.10/809,364.18 = 419,795.65/x - Step 3: Cross multiply
539,619.10x = 809,364.18 × 419,795.65 - Step 4: Simplify right side
539,619.10x = 339,767,562,029.82 - Step 5: Solve for x
x = 339,767,562,029.82/539,619.10 - Step 6: Final answer
x = 629,643.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.