Finding the Fourth Proportional to 513,828.07, 769,744.66 and 378,646.75
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Solution
The fourth proportional to 513,828.07, 769,744.66 and 378,646.75 is: 567,235.09
Step by Step Solution
- Step 1: Write the proportion equation
513,828.07 : 769,744.66 = 378,646.75 : x - Step 2: Convert to fraction form
513,828.07/769,744.66 = 378,646.75/x - Step 3: Cross multiply
513,828.07x = 769,744.66 × 378,646.75 - Step 4: Simplify right side
513,828.07x = 291,461,313,838.86 - Step 5: Solve for x
x = 291,461,313,838.86/513,828.07 - Step 6: Final answer
x = 567,235.09
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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.