Finding the Fourth Proportional to 407,728.68, 611,545.47 and 108,232.53
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Solution
The fourth proportional to 407,728.68, 611,545.47 and 108,232.53 is: 162,336.17
Step by Step Solution
- Step 1: Write the proportion equation
407,728.68 : 611,545.47 = 108,232.53 : x - Step 2: Convert to fraction form
407,728.68/611,545.47 = 108,232.53/x - Step 3: Cross multiply
407,728.68x = 611,545.47 × 108,232.53 - Step 4: Simplify right side
407,728.68x = 66,189,113,428.14 - Step 5: Solve for x
x = 66,189,113,428.14/407,728.68 - Step 6: Final answer
x = 162,336.17
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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.