Finding the Fourth Proportional to 614.68, 921.11 and 484.99
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Solution
The fourth proportional to 614.68, 921.11 and 484.99 is: 726.76
Step by Step Solution
- Step 1: Write the proportion equation
614.68 : 921.11 = 484.99 : x - Step 2: Convert to fraction form
614.68/921.11 = 484.99/x - Step 3: Cross multiply
614.68x = 921.11 × 484.99 - Step 4: Simplify right side
614.68x = 446,724.41 - Step 5: Solve for x
x = 446,724.41/614.68 - Step 6: Final answer
x = 726.76
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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.