Finding the Fourth Proportional to 811,005.74, 1,119,108.92 and 448,379.96
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Solution
The fourth proportional to 811,005.74, 1,119,108.92 and 448,379.96 is: 618,720.67
Step by Step Solution
- Step 1: Write the proportion equation
811,005.74 : 1,119,108.92 = 448,379.96 : x - Step 2: Convert to fraction form
811,005.74/1,119,108.92 = 448,379.96/x - Step 3: Cross multiply
811,005.74x = 1,119,108.92 × 448,379.96 - Step 4: Simplify right side
811,005.74x = 501,786,012,785.24 - Step 5: Solve for x
x = 501,786,012,785.24/811,005.74 - Step 6: Final answer
x = 618,720.67
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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.