Finding the Fourth Proportional to 792,135.70, 1,188,203.55 and 660,915.70
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Solution
The fourth proportional to 792,135.70, 1,188,203.55 and 660,915.70 is: 991,373.55
Step by Step Solution
- Step 1: Write the proportion equation
792,135.70 : 1,188,203.55 = 660,915.70 : x - Step 2: Convert to fraction form
792,135.70/1,188,203.55 = 660,915.70/x - Step 3: Cross multiply
792,135.70x = 1,188,203.55 × 660,915.70 - Step 4: Simplify right side
792,135.70x = 785,302,380,990.74 - Step 5: Solve for x
x = 785,302,380,990.74/792,135.70 - Step 6: Final answer
x = 991,373.55
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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.