Finding the Fourth Proportional to 513,816.65, 769,727.99 and 378,635.48
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Solution
The fourth proportional to 513,816.65, 769,727.99 and 378,635.48 is: 567,218.53
Step by Step Solution
- Step 1: Write the proportion equation
513,816.65 : 769,727.99 = 378,635.48 : x - Step 2: Convert to fraction form
513,816.65/769,727.99 = 378,635.48/x - Step 3: Cross multiply
513,816.65x = 769,727.99 × 378,635.48 - Step 4: Simplify right side
513,816.65x = 291,446,321,221.27 - Step 5: Solve for x
x = 291,446,321,221.27/513,816.65 - Step 6: Final answer
x = 567,218.53
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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.