Finding the Fourth Proportional to 4,280,242.37, 6,420,589.34 and 1,085,396.22
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Solution
The fourth proportional to 4,280,242.37, 6,420,589.34 and 1,085,396.22 is: 1,628,151.59
Step by Step Solution
- Step 1: Write the proportion equation
4,280,242.37 : 6,420,589.34 = 1,085,396.22 : x - Step 2: Convert to fraction form
4,280,242.37/6,420,589.34 = 1,085,396.22/x - Step 3: Cross multiply
4,280,242.37x = 6,420,589.34 × 1,085,396.22 - Step 4: Simplify right side
4,280,242.37x = 6,968,883,394,381.31 - Step 5: Solve for x
x = 6,968,883,394,381.31/4,280,242.37 - Step 6: Final answer
x = 1,628,151.59
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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.