Finding the Fourth Proportional to 579.16, 868.13 and 424.85
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Solution
The fourth proportional to 579.16, 868.13 and 424.85 is: 636.83
Step by Step Solution
- Step 1: Write the proportion equation
579.16 : 868.13 = 424.85 : x - Step 2: Convert to fraction form
579.16/868.13 = 424.85/x - Step 3: Cross multiply
579.16x = 868.13 × 424.85 - Step 4: Simplify right side
579.16x = 368,822.91 - Step 5: Solve for x
x = 368,822.91/579.16 - Step 6: Final answer
x = 636.83
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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.