Finding the Fourth Proportional to 810,028.36, 1,117,792.87 and 483,709.65
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Solution
The fourth proportional to 810,028.36, 1,117,792.87 and 483,709.65 is: 667,491.69
Step by Step Solution
- Step 1: Write the proportion equation
810,028.36 : 1,117,792.87 = 483,709.65 : x - Step 2: Convert to fraction form
810,028.36/1,117,792.87 = 483,709.65/x - Step 3: Cross multiply
810,028.36x = 1,117,792.87 × 483,709.65 - Step 4: Simplify right side
810,028.36x = 540,687,197,920.20 - Step 5: Solve for x
x = 540,687,197,920.20/810,028.36 - Step 6: Final answer
x = 667,491.69
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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.