Finding the Fourth Proportional to 807,997.36, 1,115,043.88 and 445,434.19
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Solution
The fourth proportional to 807,997.36, 1,115,043.88 and 445,434.19 is: 614,703.33
Step by Step Solution
- Step 1: Write the proportion equation
807,997.36 : 1,115,043.88 = 445,434.19 : x - Step 2: Convert to fraction form
807,997.36/1,115,043.88 = 445,434.19/x - Step 3: Cross multiply
807,997.36x = 1,115,043.88 × 445,434.19 - Step 4: Simplify right side
807,997.36x = 496,678,668,632.23 - Step 5: Solve for x
x = 496,678,668,632.23/807,997.36 - Step 6: Final answer
x = 614,703.33
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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.