Finding the Fourth Proportional to 1,072,919.96, 1,480,013.79 and 669,812.12
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Solution
The fourth proportional to 1,072,919.96, 1,480,013.79 and 669,812.12 is: 923,956.32
Step by Step Solution
- Step 1: Write the proportion equation
1,072,919.96 : 1,480,013.79 = 669,812.12 : x - Step 2: Convert to fraction form
1,072,919.96/1,480,013.79 = 669,812.12/x - Step 3: Cross multiply
1,072,919.96x = 1,480,013.79 × 669,812.12 - Step 4: Simplify right side
1,072,919.96x = 991,331,174,309.14 - Step 5: Solve for x
x = 991,331,174,309.14/1,072,919.96 - Step 6: Final answer
x = 923,956.32
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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.