Finding the Fourth Proportional to 757,419.36, 1,136,284.56 and 308,139.12
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Solution
The fourth proportional to 757,419.36, 1,136,284.56 and 308,139.12 is: 462,271.95
Step by Step Solution
- Step 1: Write the proportion equation
757,419.36 : 1,136,284.56 = 308,139.12 : x - Step 2: Convert to fraction form
757,419.36/1,136,284.56 = 308,139.12/x - Step 3: Cross multiply
757,419.36x = 1,136,284.56 × 308,139.12 - Step 4: Simplify right side
757,419.36x = 350,133,724,387.99 - Step 5: Solve for x
x = 350,133,724,387.99/757,419.36 - Step 6: Final answer
x = 462,271.95
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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.