Finding the Fourth Proportional to 841.24, 1,260.96 and 354
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Solution
The fourth proportional to 841.24, 1,260.96 and 354 is: 530.62
Step by Step Solution
- Step 1: Write the proportion equation
841.24 : 1,260.96 = 354 : x - Step 2: Convert to fraction form
841.24/1,260.96 = 354/x - Step 3: Cross multiply
841.24x = 1,260.96 × 354 - Step 4: Simplify right side
841.24x = 446,379.84 - Step 5: Solve for x
x = 446,379.84/841.24 - Step 6: Final answer
x = 530.62
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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.