Finding the Fourth Proportional to 872,218.92, 1,309,137.99 and 446,059.28
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Solution
The fourth proportional to 872,218.92, 1,309,137.99 and 446,059.28 is: 669,502.96
Step by Step Solution
- Step 1: Write the proportion equation
872,218.92 : 1,309,137.99 = 446,059.28 : x - Step 2: Convert to fraction form
872,218.92/1,309,137.99 = 446,059.28/x - Step 3: Cross multiply
872,218.92x = 1,309,137.99 × 446,059.28 - Step 4: Simplify right side
872,218.92x = 583,953,147,009.75 - Step 5: Solve for x
x = 583,953,147,009.75/872,218.92 - Step 6: Final answer
x = 669,502.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.