Finding the Fourth Proportional to 813,446.28, 1,122,623.01 and 450,983.84
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Solution
The fourth proportional to 813,446.28, 1,122,623.01 and 450,983.84 is: 622,394.92
Step by Step Solution
- Step 1: Write the proportion equation
813,446.28 : 1,122,623.01 = 450,983.84 : x - Step 2: Convert to fraction form
813,446.28/1,122,623.01 = 450,983.84/x - Step 3: Cross multiply
813,446.28x = 1,122,623.01 × 450,983.84 - Step 4: Simplify right side
813,446.28x = 506,284,830,309.04 - Step 5: Solve for x
x = 506,284,830,309.04/813,446.28 - Step 6: Final answer
x = 622,394.92
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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.