Finding the Fourth Proportional to 821,669.43, 1,133,799.62 and 482,013.75
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Solution
The fourth proportional to 821,669.43, 1,133,799.62 and 482,013.75 is: 665,117.85
Step by Step Solution
- Step 1: Write the proportion equation
821,669.43 : 1,133,799.62 = 482,013.75 : x - Step 2: Convert to fraction form
821,669.43/1,133,799.62 = 482,013.75/x - Step 3: Cross multiply
821,669.43x = 1,133,799.62 × 482,013.75 - Step 4: Simplify right side
821,669.43x = 546,507,004,174.71 - Step 5: Solve for x
x = 546,507,004,174.71/821,669.43 - Step 6: Final answer
x = 665,117.85
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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.