Finding the Fourth Proportional to 586,393.88, 809,218.08 and 331,745.06
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Solution
The fourth proportional to 586,393.88, 809,218.08 and 331,745.06 is: 457,805.09
Step by Step Solution
- Step 1: Write the proportion equation
586,393.88 : 809,218.08 = 331,745.06 : x - Step 2: Convert to fraction form
586,393.88/809,218.08 = 331,745.06/x - Step 3: Cross multiply
586,393.88x = 809,218.08 × 331,745.06 - Step 4: Simplify right side
586,393.88x = 268,454,102,525.73 - Step 5: Solve for x
x = 268,454,102,525.73/586,393.88 - Step 6: Final answer
x = 457,805.09
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1.5x scale
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.