Finding the Fourth Proportional to 823,518.20, 1,136,402.34 and 460,880.84
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Solution
The fourth proportional to 823,518.20, 1,136,402.34 and 460,880.84 is: 635,986.02
Step by Step Solution
- Step 1: Write the proportion equation
823,518.20 : 1,136,402.34 = 460,880.84 : x - Step 2: Convert to fraction form
823,518.20/1,136,402.34 = 460,880.84/x - Step 3: Cross multiply
823,518.20x = 1,136,402.34 × 460,880.84 - Step 4: Simplify right side
823,518.20x = 523,746,065,037.17 - Step 5: Solve for x
x = 523,746,065,037.17/823,518.20 - Step 6: Final answer
x = 635,986.02
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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.