Finding the Fourth Proportional to 793,905.60, 1,192,240.80 and 420,657.60
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Solution
The fourth proportional to 793,905.60, 1,192,240.80 and 420,657.60 is: 631,718.88
Step by Step Solution
- Step 1: Write the proportion equation
793,905.60 : 1,192,240.80 = 420,657.60 : x - Step 2: Convert to fraction form
793,905.60/1,192,240.80 = 420,657.60/x - Step 3: Cross multiply
793,905.60x = 1,192,240.80 × 420,657.60 - Step 4: Simplify right side
793,905.60x = 501,525,153,550.08 - Step 5: Solve for x
x = 501,525,153,550.08/793,905.60 - Step 6: Final answer
x = 631,718.88
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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.