Finding the Fourth Proportional to 883,920.75, 1,219,810.64 and 481,512.75
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Solution
The fourth proportional to 883,920.75, 1,219,810.64 and 481,512.75 is: 664,487.60
Step by Step Solution
- Step 1: Write the proportion equation
883,920.75 : 1,219,810.64 = 481,512.75 : x - Step 2: Convert to fraction form
883,920.75/1,219,810.64 = 481,512.75/x - Step 3: Cross multiply
883,920.75x = 1,219,810.64 × 481,512.75 - Step 4: Simplify right side
883,920.75x = 587,354,373,338.10 - Step 5: Solve for x
x = 587,354,373,338.10/883,920.75 - Step 6: Final answer
x = 664,487.60
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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.