Finding the Fourth Proportional to 586,403.78, 809,313.44 and 328,378.97
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Solution
The fourth proportional to 586,403.78, 809,313.44 and 328,378.97 is: 453,205.66
Step by Step Solution
- Step 1: Write the proportion equation
586,403.78 : 809,313.44 = 328,378.97 : x - Step 2: Convert to fraction form
586,403.78/809,313.44 = 328,378.97/x - Step 3: Cross multiply
586,403.78x = 809,313.44 × 328,378.97 - Step 4: Simplify right side
586,403.78x = 265,761,508,145.90 - Step 5: Solve for x
x = 265,761,508,145.90/586,403.78 - Step 6: Final answer
x = 453,205.66
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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.