Finding the Fourth Proportional to 811,008.29, 1,119,143.36 and 448,403.69
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Solution
The fourth proportional to 811,008.29, 1,119,143.36 and 448,403.69 is: 618,770.50
Step by Step Solution
- Step 1: Write the proportion equation
811,008.29 : 1,119,143.36 = 448,403.69 : x - Step 2: Convert to fraction form
811,008.29/1,119,143.36 = 448,403.69/x - Step 3: Cross multiply
811,008.29x = 1,119,143.36 × 448,403.69 - Step 4: Simplify right side
811,008.29x = 501,828,004,425.26 - Step 5: Solve for x
x = 501,828,004,425.26/811,008.29 - Step 6: Final answer
x = 618,770.50
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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.