Finding the Fourth Proportional to 463.21, 694 and 412.99
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Solution
The fourth proportional to 463.21, 694 and 412.99 is: 618.76
Step by Step Solution
- Step 1: Write the proportion equation
463.21 : 694 = 412.99 : x - Step 2: Convert to fraction form
463.21/694 = 412.99/x - Step 3: Cross multiply
463.21x = 694 × 412.99 - Step 4: Simplify right side
463.21x = 286,615.06 - Step 5: Solve for x
x = 286,615.06/463.21 - Step 6: Final answer
x = 618.76
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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.