Finding the Fourth Proportional to 720,883.74, 994,749.42 and 398,549.70
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Solution
The fourth proportional to 720,883.74, 994,749.42 and 398,549.70 is: 549,959.81
Step by Step Solution
- Step 1: Write the proportion equation
720,883.74 : 994,749.42 = 398,549.70 : x - Step 2: Convert to fraction form
720,883.74/994,749.42 = 398,549.70/x - Step 3: Cross multiply
720,883.74x = 994,749.42 × 398,549.70 - Step 4: Simplify right side
720,883.74x = 396,457,082,916.17 - Step 5: Solve for x
x = 396,457,082,916.17/720,883.74 - Step 6: Final answer
x = 549,959.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.