Finding the Fourth Proportional to 519.13, 778.99 and 275.65
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Solution
The fourth proportional to 519.13, 778.99 and 275.65 is: 413.63
Step by Step Solution
- Step 1: Write the proportion equation
519.13 : 778.99 = 275.65 : x - Step 2: Convert to fraction form
519.13/778.99 = 275.65/x - Step 3: Cross multiply
519.13x = 778.99 × 275.65 - Step 4: Simplify right side
519.13x = 214,727.22 - Step 5: Solve for x
x = 214,727.22/519.13 - Step 6: Final answer
x = 413.63
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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.