Finding the Fourth Proportional to 813,439.53, 1,122,613.76 and 450,977.09
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Solution
The fourth proportional to 813,439.53, 1,122,613.76 and 450,977.09 is: 622,385.64
Step by Step Solution
- Step 1: Write the proportion equation
813,439.53 : 1,122,613.76 = 450,977.09 : x - Step 2: Convert to fraction form
813,439.53/1,122,613.76 = 450,977.09/x - Step 3: Cross multiply
813,439.53x = 1,122,613.76 × 450,977.09 - Step 4: Simplify right side
813,439.53x = 506,273,082,193.13 - Step 5: Solve for x
x = 506,273,082,193.13/813,439.53 - Step 6: Final answer
x = 622,385.64
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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.