Finding the Fourth Proportional to 656,435.70, 984,653.55 and 213,203.70
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Solution
The fourth proportional to 656,435.70, 984,653.55 and 213,203.70 is: 319,805.55
Step by Step Solution
- Step 1: Write the proportion equation
656,435.70 : 984,653.55 = 213,203.70 : x - Step 2: Convert to fraction form
656,435.70/984,653.55 = 213,203.70/x - Step 3: Cross multiply
656,435.70x = 984,653.55 × 213,203.70 - Step 4: Simplify right side
656,435.70x = 209,931,780,078.14 - Step 5: Solve for x
x = 209,931,780,078.14/656,435.70 - Step 6: Final answer
x = 319,805.55
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1.5x scale
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.