Finding the Fourth Proportional to 619.49, 854.58 and 409.44
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Solution
The fourth proportional to 619.49, 854.58 and 409.44 is: 564.82
Step by Step Solution
- Step 1: Write the proportion equation
619.49 : 854.58 = 409.44 : x - Step 2: Convert to fraction form
619.49/854.58 = 409.44/x - Step 3: Cross multiply
619.49x = 854.58 × 409.44 - Step 4: Simplify right side
619.49x = 349,899.24 - Step 5: Solve for x
x = 349,899.24/619.49 - Step 6: Final answer
x = 564.82
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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.