Finding the Fourth Proportional to 519.84, 716.69 and 430.99
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Solution
The fourth proportional to 519.84, 716.69 and 430.99 is: 594.19
Step by Step Solution
- Step 1: Write the proportion equation
519.84 : 716.69 = 430.99 : x - Step 2: Convert to fraction form
519.84/716.69 = 430.99/x - Step 3: Cross multiply
519.84x = 716.69 × 430.99 - Step 4: Simplify right side
519.84x = 308,882.64 - Step 5: Solve for x
x = 308,882.64/519.84 - Step 6: Final answer
x = 594.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.