Finding the Fourth Proportional to 723,571.20, 998,457.12 and 401,275.68
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Solution
The fourth proportional to 723,571.20, 998,457.12 and 401,275.68 is: 553,720.99
Step by Step Solution
- Step 1: Write the proportion equation
723,571.20 : 998,457.12 = 401,275.68 : x - Step 2: Convert to fraction form
723,571.20/998,457.12 = 401,275.68/x - Step 3: Cross multiply
723,571.20x = 998,457.12 × 401,275.68 - Step 4: Simplify right side
723,571.20x = 400,656,559,778.84 - Step 5: Solve for x
x = 400,656,559,778.84/723,571.20 - Step 6: Final answer
x = 553,720.99
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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.