Finding the Fourth Proportional to 683,135.70, 1,024,703.55 and 209,759.55
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Solution
The fourth proportional to 683,135.70, 1,024,703.55 and 209,759.55 is: 314,639.33
Step by Step Solution
- Step 1: Write the proportion equation
683,135.70 : 1,024,703.55 = 209,759.55 : x - Step 2: Convert to fraction form
683,135.70/1,024,703.55 = 209,759.55/x - Step 3: Cross multiply
683,135.70x = 1,024,703.55 × 209,759.55 - Step 4: Simplify right side
683,135.70x = 214,941,355,531.40 - Step 5: Solve for x
x = 214,941,355,531.40/683,135.70 - Step 6: Final answer
x = 314,639.33
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Similar ratio
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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.