Finding the Fourth Proportional to 811,107.21, 1,119,335.23 and 448,555.62
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Solution
The fourth proportional to 811,107.21, 1,119,335.23 and 448,555.62 is: 619,010.78
Step by Step Solution
- Step 1: Write the proportion equation
811,107.21 : 1,119,335.23 = 448,555.62 : x - Step 2: Convert to fraction form
811,107.21/1,119,335.23 = 448,555.62/x - Step 3: Cross multiply
811,107.21x = 1,119,335.23 × 448,555.62 - Step 4: Simplify right side
811,107.21x = 502,084,108,080.49 - Step 5: Solve for x
x = 502,084,108,080.49/811,107.21 - Step 6: Final answer
x = 619,010.78
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1.5x scale
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.