Finding the Fourth Proportional to 642,151.36, 963,543.57 and 300,617.94
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Solution
The fourth proportional to 642,151.36, 963,543.57 and 300,617.94 is: 451,075.09
Step by Step Solution
- Step 1: Write the proportion equation
642,151.36 : 963,543.57 = 300,617.94 : x - Step 2: Convert to fraction form
642,151.36/963,543.57 = 300,617.94/x - Step 3: Cross multiply
642,151.36x = 963,543.57 × 300,617.94 - Step 4: Simplify right side
642,151.36x = 289,658,483,113.65 - Step 5: Solve for x
x = 289,658,483,113.65/642,151.36 - Step 6: Final answer
x = 451,075.09
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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.