Finding the Fourth Proportional to 720,522.10, 994,371.98 and 398,225.26
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Solution
The fourth proportional to 720,522.10, 994,371.98 and 398,225.26 is: 549,579.31
Step by Step Solution
- Step 1: Write the proportion equation
720,522.10 : 994,371.98 = 398,225.26 : x - Step 2: Convert to fraction form
720,522.10/994,371.98 = 398,225.26/x - Step 3: Cross multiply
720,522.10x = 994,371.98 × 398,225.26 - Step 4: Simplify right side
720,522.10x = 395,984,040,272.22 - Step 5: Solve for x
x = 395,984,040,272.22/720,522.10 - Step 6: Final answer
x = 549,579.31
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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.