Finding the Fourth Proportional to 720,885.24, 994,751.49 and 398,551.20
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Solution
The fourth proportional to 720,885.24, 994,751.49 and 398,551.20 is: 549,961.88
Step by Step Solution
- Step 1: Write the proportion equation
720,885.24 : 994,751.49 = 398,551.20 : x - Step 2: Convert to fraction form
720,885.24/994,751.49 = 398,551.20/x - Step 3: Cross multiply
720,885.24x = 994,751.49 × 398,551.20 - Step 4: Simplify right side
720,885.24x = 396,459,400,041.29 - Step 5: Solve for x
x = 396,459,400,041.29/720,885.24 - Step 6: Final answer
x = 549,961.88
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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.